Halotrichite-Pickeringite Series

Halotrichite

Faraglione Ranni, Faraglioni di Levante, Porto Levante, Vulcano Island, Lipari, Eolie Islands, Metropolitan City of Messina, Sicily, Italy

Pickeringite

Dubník, Červenica, Prešov District, Prešov Region, Slovakia

Pickeringite

Algares deposit, Aljustrel Mine, Aljustrel e Rio de Moinhos, Aljustrel, Beja, Portugal

Halotrichite

Faraglione Ranni, Faraglioni di Levante, Porto Levante, Vulcano Island, Lipari, Eolie Islands, Metropolitan City of Messina, Sicily, Italy

Pickeringite

Dubník, Červenica, Prešov District, Prešov Region, Slovakia

Pickeringite

Algares deposit, Aljustrel Mine, Aljustrel e Rio de Moinhos, Aljustrel, Beja, Portugal

Halotrichite

Faraglione Ranni, Faraglioni di Levante, Porto Levante, Vulcano Island, Lipari, Eolie Islands, Metropolitan City of Messina, Sicily, Italy

Pickeringite

Dubník, Červenica, Prešov District, Prešov Region, Slovakia

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Localities for Halotrichite-Pickeringite SeriesHide

Showing 914 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.

Andorra
Ordino Llorts ⓘ Llorts Mine	[Halotrichite] Valenti Turu and Michels (1992)
Antarctica
West Antarctica Thiel Mountains ⓘ Hart Hills	[Pickeringite] Vennum (1986)
Argentina
Catamarca Province Andalgalá Department Andalgalá ⓘ Capillitas mining district	[Halotrichite] Brodtkorb (2002)
ⓘ Bordón vein	[Halotrichite] MARQUEZ-ZAVALIA
Jujuy Province Santa Bárbara Department Cerros de Santa Bárbara El Palmar hot springs ⓘ Santa Bárbara sulphur mine	[Halotrichite] Márquez-Zavalía et al. (1995)
Salta Province Los Andes department San Antonio de los Cobres ⓘ La Concordia mine	[Halotrichite] Brodtkorb (2002)
San Juan Province Calingasta Department Calingasta Quebrada Alcaparrosa ⓘ Santa Elena Mine	[Halotrichite, Pickeringite] Rivista Minera Geol. y Min. +2 other references
ⓘ Sierra del Tontal	[Pickeringite] Juan Carlos Lodovichi
Iglesia Department ⓘ Filo del Sol mine	[Halotrichite] Perelló et al. (2023)
Australia
Australian Capital Territory Paddy's River District ⓘ Paddy's River Mine	[Pickeringite] McQueen +2 other references
New South Wales Clarke Co. ⓘ Gibsons Open Cut (Gibsons Mine)	[Halotrichite] B. G. Lottermoser: P. M. Ashley (1997)
Cumberland County Prospect Prospect Hill ⓘ Prospect Quarry	[Halotrichite, Pickeringite] Keith Compton collection
Georgiana County Peelwood ⓘ Peelwood Mine	[Pickeringite] Leverett et al. (2007)
Gough Co. Strathbogie ⓘ Webbs Consols Mine (Webbs Consols)	[Halotrichite] Ashley et al. (1999)
Murchison Co. Upper Bingara Gulf Creek ⓘ Gulf Creek Mine (Gulf Creek Copper Mine)	[Halotrichite] Ashley et al. (1999)
Sandon Co. ⓘ Halls Peak	[Halotrichite] B. G. Lottermoser: P. M. Ashley (1997) +1 other reference
Yancowinna Co. Broken Hill district ⓘ Broken Hill	[Halotrichite, Pickeringite]
Broken Hill South Mine (BHS Mine; South Mine) ⓘ Kintore opencut	Birch et al. (1997)
Queensland Charters Towers Region Charters Towers ⓘ Thalanga Mine	[Halotrichite] Red River Resources
City of Mount Isa Mount Isa ⓘ Mount Isa Mines	[Halotrichite, Pickeringite] Sielecki (1988)
ⓘ MIM underground - Upper lead-zinc levels (orebodies 4; 5; 6; 7; 8)	[Halotrichite] Sielecki (1985)
ⓘ Cloncurry Shire	[Halotrichite, Pickeringite] Sielecki (1988)
Cloncurry ⓘ Lorena Gold Mine (Lorena Mine)	[Halotrichite] Anatoly Kasatkin analyses +1 other reference
South Australia ⓘ Lake Alexandrina	[Halotrichite, Pickeringite] Rob Fitzpatrick et al. (2010)
Pastoral Unincorporated Area Oakden Hills ⓘ Cattle Grid deposit	[Halotrichite] Pring et al. (1987)
Wadnaminga goldfield ⓘ New Milo Gold Mine	[Halotrichite] Pring et al. (1987)
Waukaringa goldfield Waukaringa ⓘ Waukaringa Mine	[Halotrichite]
Tasmania Hobart city Wellington Park ⓘ The Springs	[Halotrichite] Steve Sorrell Collection
Waratah-Wynyard municipality Waratah district Waratah-Mt Bischoff ⓘ Mount Bischoff Mine	[Halotrichite] Bottrill +1 other reference
Victoria Macedon Ranges Shire Bullengarook ⓘ Mount Bullengarook	[Halotrichite, Pickeringite] - (n.d.)
Mount Alexander Shire Maldon ⓘ Carman's Tunnel	[Pickeringite]
Western Australia East Pilbara Shire Weeli Wolli Creek Area Mining Area C ⓘ Area C mine	[Halotrichite] BHP
Meekatharra Shire ⓘ Glen Ross Creek Gorge	[Pickeringite] Simpson Mineral Collection of the ...
ⓘ Mount Vernon	[Pickeringite] Simpson Mineral Collection of the ...
Mount Vernon Station ⓘ Glen Ross	[Pickeringite] Simpson Mineral Collection of the ...
ⓘ Mount Vernon Station homestead	[Pickeringite] Government Chemical Laboratories. In: ... +1 other reference
Menzies Shire Davyhurst Goldfield Mulwarrie ⓘ Ularring Westralia Gold Mine (Mount Higgins Proprietary)	[Pickeringite] Simpson (1948)
Austria
Burgenland Mattersburg District Pöttsching ⓘ Lignite mine (Pöttschinger See mine)	[Pickeringite] Huber et al. (2009)
Carinthia Sankt Veit an der Glan District Guttaring ⓘ Sonnberg	[Pickeringite] Niedermayr et al. (1995)
Waitschach ⓘ Slag localities	[Halotrichite] Neschen (n.d.)
Hüttenberg Hüttenberger Erzberg ⓘ Lölling mining district	[Pickeringite] Mitteregger et al. (1891)
Sankt Martin am Silberberg ⓘ Slag localities	[Halotrichite] Neschen (n.d.)
ⓘ Metnitz	[Halotrichite] Niedermayr et al. (1995)
Spittal an der Drau District Malta Gößbach valley ⓘ Birkofen fall	[Pickeringite] Niedermayr et al. (1995)
Wolfsberg District Reichenfels Mischlinggraben ⓘ Staubmann Mines	[Halotrichite] C.Auer (2013)
Lower Austria Horn District Brunn an der Wild Atzelsdorf ⓘ Marble quarry	[Halotrichite, Pickeringite] Kolitsch et al. (2022)
Drosendorf-Zissersdorf Wollmersdorf (Zettlitz-Wollmersdorf) ⓘ Graphite quarry	[Halotrichite, Pickeringite] Taucher (1993) +1 other reference
Krems-Land District ⓘ Krumau am Kamp	[Halotrichite, Pickeringite] Neschen (n.d.)
Mühldorf Amstall ⓘ Graphite quarry	[Halotrichite] Neschen (n.d.)
ⓘ Marble quarry (Thalinger quarry; Hausbruch)	[Halotrichite, Pickeringite] Kolitsch et al. (2022)
ⓘ Weinberg Middle	[Halotrichite, Pickeringite] Goldmann et al. (2008)
ⓘ Weinberg South	[Pickeringite] Goldmann et al. (2008)
Rossatz-Arnsdorf Rossatz ⓘ Oberkienstock	[Halotrichite] Gerald Knobloch
Melk District Persenbeug-Gottsdorf ⓘ Loja	[Halotrichite] Neschen (n.d.)
Sankt Pölten-Land District Hafnerbach Hengstberg ⓘ Graphite deposit	[Halotrichite] Kolitsch et al. (2015)
Wölbling Hausheim ⓘ Lignite mine	[Halotrichite] Niedermayr (1987)
Salzburg Hallein District Hallein ⓘ Hallein - Bad Dürrnberg salt mine	[Halotrichite] Strasser (1989)
Salzburg Untersberg massif ⓘ Salzburg shaft	[Pickeringite] Strasser (1989)
St. Johann im Pongau District ⓘ Mitterberg mining district	[Halotrichite, Pickeringite] Neschen (n.d.)
ⓘ Wolfbach valley	[Halotrichite] Strasser (1989)
Zell am See District Dienten am Hochkönig ⓘ Schwarzenbach	[Halotrichite] Exel (1993)
Lend Eschenau ⓘ Dientnergraben	[Pickeringite, Pickeringite var: Ferropickeringite] Meixner et al. (1937)
Rauris ⓘ Astenschmiede slag locality	[Halotrichite] Niedermayr et al. (2009)
Styria Bruck-Mürzzuschlag District Sankt Barbara im Mürztal Veitsch Sattlerkogel ⓘ Magnesite deposit	[Pickeringite] Taucher (2012)
Deutschlandsberg District Bad Schwanberg Gressenberg Schwarze Sulm ⓘ Forestry road outcrop	[Pickeringite] Postl et al. (2014)
Stainz Marhof ⓘ Rath quarry	[Pickeringite] Postl et al. (2011)
Leibnitz District Leutschach an der Weinstraße ⓘ Spitzmühle quarry	[Halotrichite] Taucher (1992) +1 other reference
Wildon Weitendorf ⓘ Basalt quarry	[Halotrichite] Neschen (n.d.)
Leoben District Kalwang Langteichengraben (Lange Teichen) ⓘ Teichen Mine	[Pickeringite] Exel (1993)
Kammern im Liesingtal Seiz Wolfsgruben (Wolfgruben; Wolfsgrube) ⓘ Quartz quarry	[Halotrichite, Pickeringite] Weninger (1968)
Leoben ⓘ Seegraben mine	[Pickeringite] Meixner (1954)
Liezen District Aigen im Ennstal ⓘ Sulphate efflorescences	Meixner (1973)
Irdning-Donnersbachtal Donnersbach ⓘ Kirggraben	[Pickeringite] Neschen (n.d.)
Murau District Stadl-Predlitz ⓘ Turrach river (Turrach)	[Halotrichite, Pickeringite] Schwaighofer et al. (1979)
Murtal District Hohentauern Sunk ⓘ Magnesite deposit	[Pickeringite] Meixner (1980)
ⓘ Judenburg	[Halotrichite] Collection of NHM
Südoststeiermark District Bad Gleichenberg Bairisch Kölldorf ⓘ Schaufelgraben	[Halotrichite] Postl et al. (1996)
Voitsberg District Edelschrott Modriach Herzogberg ⓘ Ebenlecker farm (Ebenlöcker farm; Ebenlecker quarry)	[Pickeringite] Taucher et al. (1995)
Köflach Köflach - Voitsberg lignite deposit Zangtal ⓘ Muttlkogel	[Halotrichite] Neschen (n.d.) +1 other reference
Upper Austria Gmunden District Bad Ischl Perneck ⓘ Bad Ischler Salzberg	[Halotrichite, Pickeringite] Arthofer et al. (2025) +1 other reference
Perg District Katsdorf ⓘ Nöbling sand pit	[Halotrichite] Erich Reiter et al. (1999)
Belgium
Wallonia Hainaut Bernissart Blaton ⓘ Mont-des-Groseillers	[Halotrichite] Mélon et al. (1976) +3 other references
Liège ⓘ Amay	[Halotrichite] Mélon et al. (1976) +1 other reference
ⓘ Ampsin	[Halotrichite] Mélon et al. (1976) +1 other reference
ⓘ Loyable	[Halotrichite] Hatert et al. (2002)
Aubel ⓘ Val-Dieu	[Pickeringite] Mélon et al. (1976) +3 other references
Chaudfontaine ⓘ La Rochette	[Halotrichite] Mélon et al. (1976) +2 other references
Engis ⓘ Engihoul-Antinne	[Halotrichite] Mélon et al. (1976) +1 other reference
ⓘ Flémalle	[Halotrichite] Mélon et al. (1976)
ⓘ Flémalle-Haute	[Halotrichite] Hatert et al. (2002)
ⓘ Chokier	[Halotrichite] Mélon et al. (1976) +1 other reference
Ivoz-Ramet ⓘ Ramioul	[Halotrichite] Mélon et al. (1976) +1 other reference
Liège Glain ⓘ Patience et Beaujonc coal dump	[Halotrichite, Pickeringite] Van Tassel (1973) +2 other references
ⓘ Stavelot	[Pickeringite] Mélon et al. (1976) +1 other reference
Trooz ⓘ Forêt	[Halotrichite] Hatert et al. (2002)
Visé ⓘ Argenteau	[Halotrichite] Mélon et al. (1976) +1 other reference
ⓘ Richelle	[Halotrichite] Mélon et al. (1976) +1 other reference
Namur Andenne Thon-Samson ⓘ Samson	[Halotrichite] Hatert et al. (2002)
Walloon Brabant Ottignies-Louvain-la-Neuve ⓘ Franquenies	[Pickeringite] Van Tassel (1944) +4 other references
Bolivia
La Paz Loayza Province ⓘ Espíritu Santo Mine	[Pickeringite] Federico Ahlfeld and Alejandro Schneider-Scherbina (1964)
Oruro Cercado Province Oruro ⓘ San José Mine	[Halotrichite] Wilson (2001)
ⓘ Socavón Mine (La Salvadora mine)	Rod Martin field observations
Potosí Rafael Bustillo Province Llallagua ⓘ Siglo Veinte Mine	[Halotrichite, Pickeringite] Wilson (2001) +1 other reference
Tomás Frías Province Potosí (Potosí Municipality) ⓘ Cerro de Potosí (Cerro Rico)	[Halotrichite, Pickeringite] Smith et al. (2001)
Brazil
Minas Gerais Caldas ⓘ Osamu Utsumi mine	[Pickeringite] Waber et al. (1992) +1 other reference
ⓘ Poços de Caldas alkaline complex	[Halotrichite] Gomes et al. (2023)
Santa Catarina Tubarão ⓘ Coal mine drainage	[Pickeringite] Silva et al. (2021)
São Paulo Itaquaquecetuba ⓘ Itaquareia quarry	[Pickeringite] Atencio et al. (2011)
Tocantins Jaú do Tocantins ⓘ Outcrop No. 17 pegmatite	[Pickeringite] Queiroz (2016)
Bulgaria
Blagoevgrad Province Simitli Municipality Brezhani ⓘ Pirin mine	[Pickeringite] Elena Shcherbakova (2010)
Kardzhali Province Momchilgrad Municipality Obichnik ⓘ Obichnik Au-Ag deposit	[Halotrichite, Pickeringite] Kunov et al. (1997)
Montana Province Chiprovtsi Municipality ⓘ Chiprovtsi deposit	[Halotrichite, Pickeringite] Dimitrova +4 other references
Plovdiv Province Rodopi Municipality ⓘ KCM smelter slag locality	[Halotrichite] Atanassova et al. (2009)
Canada
Alberta Peace River ⓘ Smoky River	[Pickeringite] Rutherford (1932)
British Columbia Kamloops Mining Division Maggie claim group Cache Creek ⓘ Spatsum claim	[Halotrichite] Peatfield (n.d.) +1 other reference
Manitoba Sherridon District ⓘ Sherritt Gordon Mine (Sherridon Mine)	[Halotrichite, Pickeringite] Geological Association of Canada (2014)
Newfoundland and Labrador Newfoundland Baie Verte Peninsula Tilt Cove ⓘ Tilt Cove Slag Locality ?	[Halotrichite] Norman Wilson personal collection
Nova Scotia Cape Breton Co. ⓘ Sydney coalfield	[Pickeringite] Zodrow (1989)
ⓘ Glace Bay	[Halotrichite, Pickeringite] Zodrow et al. (1978)
#26 Colliery ⓘ 1-B mine	[Halotrichite] Palache et al. (1951)
Halifax Co. ⓘ Halifax slavikite occurrence	[Halotrichite] Ogilvie (1979)
Hants Co. ⓘ Brooklyn	[Pickeringite] How (1867)
Ontario Kenora District Drayton Township ⓘ North Pines Mine	[Halotrichite] Sabina (1991)
Québec Montérégie La Vallée-du-Richelieu RCM Mont Saint-Hilaire ⓘ Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH)	[Halotrichite] Grice (1989) +1 other reference
Lajemmerais RCM Varennes & St-Amable ⓘ Saint-Amable sill	[Halotrichite] Horváth et al. (1998)
ⓘ Demix-Varennes quarry	[Halotrichite] Horváth et al. (1998)
Montréal ⓘ Francon quarry	[Halotrichite] Tarassoff et al. (2006)
Yukon Dawson mining district ⓘ Big Fish River	[Halotrichite] Robinson et al. (1992)
ⓘ Rapid Creek	[Halotrichite] 150-152. +2 other references
Cape Verde
Sotavento Islands Fogo Island ⓘ Mount Fogo	[Halotrichite, Pickeringite] Universidade de Evora +1 other reference
Chile
Antofagasta Antofagasta Province Mejillones Mejillones peninsula ⓘ Coronel Manuel Rodríguez mine	[Halotrichite] Some of the Sulphates has been ...
ⓘ Unnamed Cu mine [1]	[Halotrichite, Pickeringite] Wet Chemical by Gerhard Möhn
Sierra Gorda ⓘ Alcaparrosa Mine	[Halotrichite, Pickeringite] Kampf +5 other references
ⓘ La Compañia Mine	[Halotrichite] Samples analysed by Dr. Jochen Schluter
ⓘ La Vendida Mine	[Pickeringite] XRD by Joachim Lorenz
El Loa Province Calama Chuquicamata District ⓘ Chuquicamata Mine	[Halotrichite, Pickeringite] Bandy (1938) +1 other reference
Toki Cu deposit (Toki Cluster) ⓘ Queténa Mine (Queténa Prospect)	[Halotrichite] Palache et al. (1951)
Tocopilla Province María Elena Oficina María Elena ⓘ Francisco de Vergara	[Pickeringite] S. G. Gordon (1942)
Arica y Parinacota Arica Province Los Camarones valley ⓘ Cuya	[Halotrichite] Kampf et al. (2013)
ⓘ Cuya NE9 sulfate occurrence	[Halotrichite] Kampf et al. (2013)
Atacama Copiapó Province ⓘ Tierra Amarilla	[Halotrichite] Handbook of Mineralogy (http://rruff.info/doclib/hom/halotrichite.pdf)
Tarapacá Tamarugal Province ⓘ Cerros Pintados	[Halotrichite, Pickeringite] Peter G. Seroka collection
China
Gansu Baiyin Baiyin District Baiyinchang ore field Baiyinchang Cu deposit ⓘ Huoyanshan Mine	[Halotrichite] Bingbin Yang (1979)
ⓘ Zheyaoshan Mine	[Halotrichite] Bingbin Yang (1979)
Guangdong Shaoguan Qujiang District ⓘ Dabaoshan Mine	[Halotrichite] Liu et al. (2018)
Guizhou Qianxinan Xingren County Huijiabao gold field ⓘ Lanmuchang Tl deposit	[Halotrichite, Pickeringite] Zhao +6 other references
Inner Mongolia Bayannur City (Bayannao'er Prefecture) Urad Rear Banner (Wulate Houqi) ⓘ Tanyaokou Fe-Cu-Zn deposit	[Halotrichite, Pickeringite] Zhaolong Li et al. (1981)
Qinghai Haixi Mongol and Tibetan Autonomous Prefecture Da Qaidam (Dachaidan Co.) Xitieshan ⓘ Xitieshan Mine	[Halotrichite, Pickeringite] Guangzhi Tu et al. (1964)
Xinjiang Turpan Shanshan Co. ⓘ Kanggu'er Au deposit (Kanggur Au deposit; Kangur Au deposit; Kanggul Au deposit; Kanggur Tag Au deposit; Kanggu'ertage Au deposit)	[Pickeringite] Kaiyin Bai and Zhaoxin Han (2007)
Yunnan Baoshan Tengchong County ⓘ Rehai geothermal field	[Halotrichite] Meixiang et al. (1987)
Tengchong Volcanic Geothermal National Geological Park ⓘ Zhenzhu Spring	[Pickeringite] Luo et al. (2019)
Costa Rica
Alajuela Province San Carlos Canton Arenal Vulcano National Parc ⓘ Arenal Volcano	[Halotrichite] Stoiber et al. (1974)
Sarchí Canton ⓘ Poás Volcano	[Halotrichite, Pickeringite] Rodríguez et al. (2017)
Cartago Province Oreamuno Canton Irazú Volcano ⓘ Cueva Los Minerales	[Halotrichite, Pickeringite] Ulloa et al. (2018)
Cuba
Isla de la Juventud special municipality Isla de la Juventud (Isle of Pines; Island of Youth) ⓘ Rio del Callejon deposit	[Halotrichite] Zwahr et al. (1999)
Cyprus
Nicosia District ⓘ Sia	[Halotrichite] Ng +1 other reference
Czech Republic
Central Bohemian Region ⓘ Jílové gold mining district	[Pickeringite] Litochleb et al. (2000)
ⓘ Kladno District	[Halotrichite, Pickeringite] Žáček et al. (1995)
Libušin ⓘ Kladno mine	[Pickeringite] Uwe Kolitsch (powder X-ray diffraction + SEM-EDS) +1 other reference
ⓘ Otvovice ?	[Halotrichite] Ales Tomek photo
Prague-West District Hradištko ⓘ Mandát	[Halotrichite, Pickeringite] Velebil (2000)
Rakovník District Pavlíkov Skřivaň ⓘ Valachov Hill	[Halotrichite, Pickeringite] Palache et al. (1951)
Hradec Králové Region Trutnov District Radvanice ⓘ Kateřina Coal Mine	[Halotrichite, Pickeringite] Jirásek (2001)
Karlovy Vary Region Cheb District Stará Voda ⓘ Dyleň	[Halotrichite] Fiala
Karlovy Vary District ⓘ Jáchymov	[Halotrichite] Hloušek et al. (2002)
Svornost Mine ⓘ Geschieber vein ?	[Halotrichite] 86. +1 other reference
Liberec Region Česká Lípa District Dubá ⓘ Bukovec	[Pickeringite] Breiter K. (1976)
ⓘ North Bohemian Uranium District	[Pickeringite] Scharm +7 other references
Moravian-Silesian Region Frýdek-Místek District Dobrá ⓘ Dobrá-Staré Město	Matýsek et al. (2023)
Karviná District Lázně Darkov ⓘ Darkov Mine (1 May mine)	[Halotrichite, Pickeringite] Matýsek et al. (2014)
Orlová ⓘ ČSA Mine	[Halotrichite, Pickeringite] Matýsek et al. (2014)
Lazy Mine ⓘ Dukla Mine	[Halotrichite, Pickeringite] Matýsek et al. (2014)
Stonava ⓘ ČSM Mine	[Pickeringite] Matýsek et al. (2014)
Nový Jičín District Štramberk ⓘ Limestone quarries	[Halotrichite] Jirásek et al. (2011)
Ostrava-City District Ostrava Koblov ⓘ Landek Hill	[Pickeringite] Matýsek D. (1999)
Odra Mine (after 1995) Ostrava Mine (after 1967) ⓘ Zárubek Mine (after 1954)	[Halotrichite] Vinš V. (1957)
Pardubice Region Pardubice District ⓘ Chvaletice	[Halotrichite, Pickeringite] Prachař +6 other references
Prague ⓘ Trója	[Pickeringite] Palache et al. (1951)
South Moravian Region Brno-Country District Čučice ⓘ Graphite mines	[Halotrichite] Houzar (1998)
Hodonín District Žádovice ⓘ Barbora I lignite mine	[Halotrichite] Kruťa T. (1944)
Ústí nad Labem Region Děčín District ⓘ Pravčice rock arch	[Halotrichite] Varilová et al. (2011)
Louny District Postoloprty Strkovice ⓘ Strkovice deposit	[Halotrichite] Filippi (1999)
Teplice District Bílina ⓘ Bílina coal mine	[Halotrichite] Bouška
ⓘ Krupka	[Halotrichite]
Vrchoslav ⓘ Vrchoslav fluorite deposit	[Halotrichite] Petr Fuchs collection
Vysočina Region Žďár nad Sázavou District Bory ⓘ Dolní Bory	[Halotrichite] Staněk (1991) +4 other references
ⓘ Pegmatite vein Oldřich	[Halotrichite] Staněk (1997)
Rožná Rožná deposit ⓘ Rožná I Mine	[Pickeringite] Petr Pauliš
Zlín Region Uherské Hradiště District Komňa ⓘ Bučník Hill Quarry	[Halotrichite] Gramblička (n.d.)
Egypt	[Halotrichite, Halotrichite var: Masrite]
New Valley Governorate ⓘ Dakhlah Oasis (Dakhleh Oasis)	[Pickeringite]
El Salvador
Sonsonate Department ⓘ Izalco Volcano	[Halotrichite] Stoiber et al. (1974)
Finland
North Savo Kuopio ⓘ Björkbakkagård	[Halotrichite] Arppe Finsk. Min. 1857 +1 other reference
South Savo Joroinen ⓘ Viholanniemi	[Pickeringite] Vorma
France
Auvergne-Rhône-Alpes Cantal Mauriac Salers Fontanges ⓘ Seilhols	[Pickeringite]
Haute-Loire Brioude Vieille-Brioude ⓘ Granite quarry	[Halotrichite] Pélisson (1989)
Brittany Côtes-d'Armor Saint-Brieuc Caurel ⓘ N164 By-pass	[Halotrichite] Pierre Le Roch
Finistère Châteaulin ⓘ Huelgoat	[Halotrichite]
ⓘ Huelgoat mines	[Halotrichite] Lacroix (1910) +1 other reference
Poullaouen ⓘ La Vieille mine	[Halotrichite] Pierrot et al. (1973)
Locmaria-Berrien ⓘ Poullaba vein	[Halotrichite] Pierrot et al. (1973)
Scrignac ⓘ Kerizac	[Halotrichite] Chauris (2014)
Corsica Haute-Corse Corte Vezzani ⓘ Vezzani Mine	[Halotrichite] Lheur et al. (2011)
Grand Est Ardennes Charleville-Mézières ⓘ Anchamps	[Halotrichite] Vanrusselt (2023)
ⓘ Fumay	[Halotrichite] Nicu Pacanu collection
Hauts-de-France Pas-de-Calais Lens ⓘ Avion	[Halotrichite, Pickeringite] Naze-Nancy Masalehdani et al. (2009)
Nouvelle-Aquitaine Haute-Vienne Limoges Saint-Léonard-de-Noblat ⓘ Puy-les-Vignes	[Halotrichite] Lebocey (2014)
Occitanie Ariège Ascou ⓘ D613 Ax les Thermes	[Halotrichite] Patrice Queneau Collection visual identification. Confirmed. Analyzed by Nicolas Meisser (Naturéum)
Foix Ax-les-Thermes ⓘ Route départementale 613	[Halotrichite] Patrice Queneau Collection visual identification. Confirmed. Analyzed by Nicolas Meisser (Naturéum)
Aveyron Villefranche-de-Rouergue Decazeville Decazeville coal basin ⓘ Découverte de Lassalle	[Halotrichite] www.pangeaminerals.com (2005)
Gard Le Vigan Montdardier ⓘ Les Vieux Travaux mine	[Halotrichite] Gol et al. (2010)
ⓘ Les Malines District	[Halotrichite] Gol et al. (2010)
Pyrénées-Orientales Céret Argelès-sur-Mer ⓘ Château de Valmy	[Halotrichite] Berbain et al. (2005)
ⓘ Feldspar quarries (Mas de l'Abat)	[Halotrichite] Berbain et al. (2005)
Pays de la Loire Loire-Atlantique Nantes Nantes Chantenay ⓘ Miséri (Miséry) quarry	[Halotrichite] Baret (1905)
Saint-Nazaire Saint-Nazaire ⓘ Porcé	[Halotrichite] Baret (1905)
Provence-Alpes-Côte d'Azur Alpes-Maritimes Nice Arrondissement Saint-Sauveur-sur-Tinée ⓘ Saint-Sauveur (incl. Pointe de Campanier)	[Halotrichite] R. Pierrot
Hautes-Alpes Gap La Chapelle-en-Valgaudemar ⓘ Jas Roux	[Halotrichite] Bourgoin et al. (2011)
Var Draguignan Rayol-Canadel-sur-Mer ⓘ Pickeringite occurrence	[Pickeringite] Galéa-Clolus et al. (2023)
Toulon Le Lavandou ⓘ Cavalière	[Pickeringite] Galéa-Clolus et al. (2023)
Germany
Baden-Württemberg Freiburg Region Breisgau-Hochschwarzwald Münstertal St Trudpert ⓘ Münstergrund Mine	[Halotrichite] Kleinander (2009)
Sulzburg ⓘ Holderpfad area	[Halotrichite] Brill (2017)
Ortenaukreis Haslach im Kinzigtal Steinach ⓘ Artenberg quarry	[Halotrichite] Hahn (1991)
Hausach Hausach ⓘ Erzengel Gabriel Mine (Gabriel Mine) ?	[Halotrichite] Walenta (1996)
Oberwolfach ⓘ Clara Mine	[Halotrichite] Walenta (1992)
Seelbach Seelbach Weiler ⓘ Michael Mine	[Halotrichite] Wittern (2001)
ⓘ Schauinsland Pb-Zn mining district	[Halotrichite] Walenta (1992)
Karlsruhe Region Rhein-Neckar-Kreis Mühlhausen Rettigheim ⓘ Clay pit	[Halotrichite] ...
Bavaria Lower Bavaria Freyung-Grafenau District Röhrnbach ⓘ Steinerleinbach Quarry	[Halotrichite] Weiß (1990) +1 other reference
Passau District ⓘ Kropfmühl-Untergriesbach graphite mining district	[Halotrichite] Weiß (1990)
Regen District Bodenmais ⓘ Silberberg Mine	[Halotrichite] Obermüller (1993)
Rinchnach Grub ⓘ Grub Quarries	[Halotrichite] Obermüller (1992)
Upper Franconia Wunsiedel im Fichtelgebirge Arzberg ⓘ Arzberg iron mines ?	[Halotrichite] Hanneberg et al. (2009) +1 other reference
Upper Palatinate Neustadt an der Waldnaab District Windischeschenbach Oberbaumühle ⓘ Oberbaumühle Quarry	[Halotrichite] Schwarzmeier et al. (2015) +2 other references
Weiden in der Oberpfalz Oedenthal ⓘ Scharnagl Quarry	[Pickeringite] Manfred Früchtl collection (SEM-EDS analysed)
Brandenburg Märkisch-Oderland Rüdersdorf bei Berlin ⓘ Limestone quarries	[Halotrichite] Jahn (2013)
Hesse Darmstadt Darmstadt-Dieburg Messel ⓘ Messel Mine	[Halotrichite] Aufschluss 1980 (6)
Darmstadt Darmstadt-Ost ⓘ Prinz von Hessen Mine	[Halotrichite] Aufschluss 1980 (6)
Kassel Region Hersfeld-Rotenburg Nentershausen Süß Richelsdorf Smelter ⓘ Ore dumps ?	[Halotrichite] Weiß (1990)
Schwalm-Eder Schwalmstadt Gusterhain ⓘ Wohlfarth Mine	[Halotrichite] Palache et al. (1951)
Lower Saxony Goslar District Goslar Rammelsberg ⓘ Rammelsberg Mine	[Halotrichite] Steinkamm et al. (1988)
North Rhine-Westphalia Arnsberg Herne Baukau ⓘ Julia coal mine	[Halotrichite, Pickeringite] Weiß (1990)
Hochsauerlandkreis Arnsberg Müschede ⓘ Lanwehr quarry	[Halotrichite] found by Thomas Thieme
Marsberg ⓘ Copper mines	[Pickeringite] Schnorrer (2000) +1 other reference
Märkischer Kreis Iserlohn Letmathe Helmke quarry nature reserve ⓘ Genna zinc smelter slag locality	[Halotrichite] Bender et al. (1994)
Olpe Lennestadt ⓘ Meggen Mine	[Halotrichite] Weiß (1990)
Cologne Aachen Alsdorf ⓘ Anna mine	[Halotrichite, Pickeringite] Blaß et al. (1993)
ⓘ Anna I dump	[Pickeringite] Košek (2018)
Düsseldorf Essen Dellwig ⓘ Christian Levin coal mine	[Halotrichite] Weiß (1990)
Oberhausen Alstaden ⓘ Alstaden coal mine	[Halotrichite] Vertacnik (1983) +1 other reference
Münster Bottrop ⓘ Franz-Haniel Mine	[Halotrichite] Weiß (1990)
Recklinghausen Marl Hüls ⓘ Auguste Victoria coal mine	[Halotrichite] Weiß (1990)
Rhineland-Palatinate Donnersbergkreis Nordpfälzer Land Bayerfeld-Steckweiler ⓘ Roßwald Mine	[Halotrichite] Heidtke (2001)
Stahlberg ⓘ Erzengel Michael Mine (Erzengel Mine)	[Halotrichite] Ferber (1776)
Rhein-Lahn-Kreis Loreley Sankt Goarshausen Wellmich ⓘ Äquivalenz adit	[Halotrichite] Weiß (1990)
Saarland Saarlouis Reisbach ⓘ Dr. Schäfer mine	[Halotrichite] Thomas Kleser Collection / Analyses by ...
Saxony Bautzen District Oßling ⓘ Oßling Quarry	[Halotrichite, Pickeringite] Wittern (2001)
Wittichenau ⓘ Dubring quarry	[Halotrichite, Pickeringite] Wittern (2001)
Dresden ⓘ Willi Agatz mine	[Halotrichite] Thalheim +1 other reference
Erzgebirgskreis Raschau-Markersbach Langenberg Graul Gottes Geschick Vereinigt Feld Mine ⓘ St Catharina Mine	[Halotrichite] www.dergraul.de (2001)
Görlitz District Quitzdorf am See Horscha ⓘ Pansberg quarry	[Halotrichite] 86. +1 other reference
ⓘ Quartzite quarry	[Pickeringite] Witzke et al. (2006)
Mittelsachsen Brand-Erbisdorf ⓘ Himmelsfürst Mine	[Halotrichite] King (n.d.)
Oberschöna Bräunsdorf ⓘ Neue Hoffnung Gottes Mine	[Halotrichite] Naumann et al. (1898)
Sächsische Schweiz-Osterzgebirge Freital Döhlen ⓘ Carola Mine	[Halotrichite] Thalheim +1 other reference
Thuringia Greiz District Kauern ⓘ Lichtenberg Absetzer dump	[Halotrichite, Pickeringite] Witzke et al. (1998)
Ronneburg ⓘ Lichtenberg open cast	[Halotrichite] Witzke et al. (1998)
Saalfeld-Rudolstadt District Lehesten ⓘ Slate quarries	[Halotrichite, Pickeringite] Liebeskind et al. (1992)
Greece
Attica East Attica Lavreotiki Elaiochori Dipseliza mines ⓘ Dipseliza Sulfate Locality	[Halotrichite, Pickeringite] Rieck (n.d.)
Plaka Plaka Mines ⓘ Plaka Sulfate Locality	[Halotrichite, Pickeringite] 62 +3 other references
ⓘ Plaka Sulfate Locality II	[Halotrichite, Pickeringite] Rieck (n.d.)
Sounion Cato Sounio mines ⓘ Sounion Sulfate Locality	[Halotrichite, Pickeringite] Rieck (n.d.)
Central Macedonia Chalkidiki Kassandra ⓘ Aghia Paraskevi caves	[Pickeringite] Lazaridis G. et al. (2011)
Eastern Macedonia and Thrace Evros Alexandroupoli ⓘ Agios Philippos Mine	[Halotrichite, Pickeringite] Triantafyllidis et al. (2007)
South Aegean Milos Milos Island ⓘ Thiorichia ?	[Halotrichite] Markus J. Stark Collection
Guatemala
Quetzaltenango Department Quetzaltenango ⓘ Santiaguito Dome (Santiaguito Volcano)	[Pickeringite] Stoiber et al. (1974)
Hungary
Baranya County Komló District ⓘ Komló	[Halotrichite] Szakáll et al. (1997)
Pécs District ⓘ Lámpás Valley	[Pickeringite] Sándor et al. (2005)
ⓘ Pécs-Vasas	[Halotrichite, Pickeringite] Szakáll et al. (2008)
Borsod-Abaúj-Zemplén County Gönc District ⓘ Telkibánya	[Halotrichite] Szakáll et al. (1997)
Kazincbarcika District Dédestapolcsány ⓘ Heinrich adit	[Pickeringite] Szakáll et al. (1997)
Múcsony ⓘ Szeles Shaft	[Halotrichite] Szakáll et al. (1997)
ⓘ Ormosbánya	[Halotrichite] Szakáll et al. (1997)
ⓘ Rudabánya	[Halotrichite] NAGY et al. (2000)
ⓘ Vilmos Mine	[Halotrichite] Szakáll: Minerals of Rudabánya
Miskolc District Miskolc ⓘ Lyukóbánya	[Halotrichite] Szakáll et al. (1997)
ⓘ Radostyán	[Pickeringite] Sándor et al. (2005)
Tokaj District Tarcal ⓘ Kopasz Hill andesite quarry	[Pickeringite] Szakáll et al. (1997) +1 other reference
Fejér County Mór District ⓘ Pusztavám	[Halotrichite] Szakáll et al. (1996)
Heves County Eger District Egercsehi ⓘ Egercsehi Coal Mine	[Halotrichite] Szakáll et al. (1997)
Gyöngyös District Gyöngyösoroszi ⓘ Károlytáró	[Halotrichite] Sándor et al. (2005)
Mátraszentimre ⓘ Szent Imre Mine	[Halotrichite] Szakáll-Kristály-2018 +1 other reference
Parádfürdő ⓘ Egyesség Adit	[Halotrichite] Szakáll et al. (1997) +1 other reference
ⓘ Hegyes Hill	[Halotrichite] Szakáll et al. (1997)
ⓘ Hosszú-bérci Alum Quarry	[Halotrichite]
Pétervására District Parádsasvár ⓘ Rudolftanya	[Halotrichite] Szakáll et al. (1997) +1 other reference
ⓘ Recsk	[Halotrichite] Tokody (1954)
ⓘ Lahóca Hill	[Halotrichite] Szakáll et al. (1997)
Komárom-Esztergom County Tatabánya ⓘ Coal mines	[Halotrichite] Szakáll et al. (1997)
ⓘ Tokodaltáró	[Halotrichite] Szakáll et al. (1996)
Nógrád County ⓘ Felsőpetény	[Halotrichite, Pickeringite] Szakáll et al. (1997)
Keszeg ⓘ Sinkár Quarry	[Halotrichite]
Pest County Szob District ⓘ Nagybörzsöny	[Halotrichite]
ⓘ Alsó-Rózsa adit	[Halotrichite] Szakáll et al. (1996)
ⓘ Altáró	[Halotrichite]
Veszprém County Tapolca District Lesenceistvánd ⓘ Scree Mine	[Halotrichite]
Zala County Keszthely district Rezi ⓘ Kotyor brook	[Halotrichite] Szakáll et al. (1996)
Iceland
Capital Region Hafnarfjörður Krysuvik-Seltun geothermal area ⓘ Krisuvik hot spring	[Halotrichite] Palache et al. (1951)
Northeastern Region Þingeyjarsveit Skútustaðahreppur Myvatn ⓘ Krafla Volcano	[Halotrichite] Carson III (2015)
Southern Peninsula Grindavíkurbær Trolladyngja ⓘ Sog valley	[Pickeringite] Lahan (2012)
Iran
West Azerbaijan Province ⓘ Urmia County	[Halotrichite] Palache et al. (1951)
Ireland
Munster Kerry County ⓘ Ballybunnion	[Halotrichite] Stephen Moreton Collection
Italy
Aosta Valley Saint-Marcel Servette-Chuc mining complex ⓘ Servette slag heaps	[Halotrichite] Neschen (n.d.)
Calabria Cosenza Province Cassano all'Ionio (Cassano allo Ionio) ⓘ Cassano all'Ionio caves (Cassano allo Ionio caves)	[Pickeringite] D’Angeli et al. (2017) +1 other reference
Metropolitan City of Reggio Calabria San Lorenzo ⓘ Grana	[Halotrichite] Pailette (1842)
Campania Metropolitan City of Naples Bacoli Miseno ⓘ Grotta dello Zolfo (Grotta di Allume)	[Pickeringite] NHM +1 other reference
ⓘ Mount Vesuvius	[Halotrichite, Pickeringite] Russo et al. (2004)
Pozzuoli ⓘ Antiniana (Scarfoglio)	[Halotrichite, Pickeringite] Russo et al. (2017)
ⓘ Pisciarelli di Agnano	[Halotrichite, Pickeringite] Russo et al. (2017)
ⓘ Solfatara di Pozzuoli	[Halotrichite, Pickeringite] Palache et al. (1951)
ⓘ "Bocca Grande" fumarole	[Halotrichite] Russo et al. (2017)
Torre del Greco ⓘ Vesuvius fumaroles at the crater bottom	[Halotrichite, Pickeringite] Russo et al. (2004) +1 other reference
ⓘ Vesuvius fumaroles	[Halotrichite, Pickeringite] Russo et al. (2004) +1 other reference
Emilia-Romagna Parma Province Berceto Corchia mine ⓘ Speranza Stope	[Halotrichite] Adorni F. (1997)
Piacenza Province Ferriere ⓘ Rocca Marsa	[Halotrichite] Neschen (n.d.)
Lazio Metropolitan City of Rome Capital Manziana ⓘ Solfatara di Manziana	[Halotrichite] Stoppani et al. (1982)
Sacrofano ⓘ Monte Solforoso	[Halotrichite] Del Caldo et al. (1973) +1 other reference
Liguria Genoa Sestri Levante ⓘ Libiola Mine	[Halotrichite, Pickeringite] Carbone et al. (2002)
Savona Province Urbe ⓘ Faiallo Pass	[Halotrichite] Neschen (n.d.)
Piedmont Cuneo Province ⓘ Dronero	[Halotrichite, Pickeringite] Piccoli et al. (2007)
Entracque ⓘ Punta Chistafort	[Pickeringite] Ciriotti et al. (2020)
Metropolitan City of Turin Chialamberto ⓘ Fragnè Mine	[Halotrichite, Pickeringite] Piccoli et al. (2007)
Lessolo Calea ⓘ Brosso Mine	[Pickeringite] Campostrini (2001)
Verbano-Cusio-Ossola Province Macugnaga ⓘ Pestarena gold mine (Pestarena Mines)	[Pickeringite] Ferrari et al. (1950) +2 other references
Ornavasso ⓘ Migiandone Mine (Miggiandone)	[Halotrichite, Pickeringite] C.M. Gramaccioli (1975)
Premosello-Chiovenda ⓘ Freva Mine (Cuzzago Mine; Buèr Mine; Cuzzago & Nibbio Mine)	[Pickeringite] Scaini G. (1971) +1 other reference
ⓘ Verbania	[Halotrichite] Barelli (1835) +1 other reference
Sardinia Nuoro Province Gadoni ⓘ Funtana Raminosa Mine	[Pickeringite] Stara et al. (1999)
Sassari Province ⓘ Gallura	[Pickeringite] Gamboni et al. (2021)
Sassari ⓘ Argentiera Mine (Argentiera della Nurra Mine)	[Pickeringite] Bortolozzi (n.d.)
South Sardinia Province Domusnovas ⓘ Perda Niedda Mine	[Halotrichite] Stara et al. (1996)
Fluminimaggiore ⓘ Genna Movexi-Santa Vittoria	[Pickeringite] Stara et al. (1996)
ⓘ Perdu Cara Mine (Perdu Cara-Santa Vittoria veins; Perdu Cara deposit)	[Pickeringite] Stara et al. (1996)
ⓘ Su Zurfuru Mine	[Pickeringite] Stara et al. (1994)
ⓘ Furtei	[Halotrichite] Fernando Caboni et al. (2024)
ⓘ Furtei mine	[Halotrichite, Pickeringite] Fernando Caboni et al. (2024) +1 other reference
Gonnosfanadiga ⓘ Fosso Is Bandius Prospect	[Pickeringite] Stara et al. (1996)
Villaputzu ⓘ Baccu Locci Mine	[Halotrichite, Pickeringite] //doi.org/10.57635/MICRO.2025.23.16
Sicily Metropolitan City of Messina Eolie Islands (Aeolian Islands) Lipari ⓘ Stromboli Island	[Pickeringite] Renzulli +4 other references
Vulcano Island ⓘ La Fossa crater	[Pickeringite] Campostrini et al. (2011)
Porto Levante ⓘ Faraglioni di Levante	[Pickeringite] Campostrini et al. (2011)
ⓘ Faraglione Nico	[Pickeringite] GEBHARD G. et al. (1988)
ⓘ Grotta dell'Allume	[Halotrichite, Pickeringite] P.Forti (1994)
ⓘ Faraglione Ranni	[Halotrichite, Pickeringite] Jervis (1873)
ⓘ Vulcanello	[Halotrichite, Pickeringite] Jervis (1881)
Trentino-Alto Adige/Südtirol South Tyrol Eisacktal (Valle Isarco) Brixen (Bressanone) ⓘ Albes (Albeins)	[Halotrichite] Exel (1987)
Villnöß (Funes) ⓘ Halotrichite occurrence	[Halotrichite] Hockauf (1887)
Trento Province Fierozzo ⓘ Canezza Mine	[Pickeringite] Forenza et al. (2005)
Fornace ⓘ Quadrate	[Halotrichite] Andreatta C. (Trentino)
Levico Terme ⓘ Grotta del Vetriolo	[Halotrichite] Exel (1987)
Tuscany Grosseto Province Massa Marittima ⓘ Niccioleta Mine	[Halotrichite, Pickeringite] Brizzi G. et al. (GR)
Scansano ⓘ Pereta Mine	[Halotrichite, Pickeringite] Sitta et al. (1981)
Livorno Province Campiglia Marittima ⓘ Monte Valerio	[Halotrichite] Neschen (n.d.)
Capoliveri ⓘ Cape Calamita Mine	[Pickeringite] Göske et al. (1997)
ⓘ Vallone stope	[Pickeringite] Bortolozzi (n.d.)
Livorno ⓘ Calafuria	[Pickeringite] Innocenti et al. (2002) +1 other reference
Piombino ⓘ Baratti slag locality	[Halotrichite] Neschen (n.d.)
Porto Azzurro ⓘ Terranera Mine	[Pickeringite] G. D'Achiardi (picroallumogene)
Rio ⓘ Rio Marina	[Halotrichite, Pickeringite] De Michele (1974)
ⓘ Rio Mine	[Halotrichite] F. Millosevich (1915)
ⓘ Antenna stope	[Pickeringite] F. Millosevich (1914)
ⓘ Valle Giove stope	[Pickeringite] L. Rossato
ⓘ Vigneria stope	[Pickeringite] Panichi (1909)
Lucca Province Fabbriche di Vergemoli ⓘ Fornovolasco	[Halotrichite, Pickeringite] Mauro (2020)
ⓘ Cava del Ferro (Bùgie mines; Trimpello)	[Halotrichite, Pickeringite] Biagioni et al. (2008) +1 other reference
Pietrasanta Valdicastello Carducci ⓘ Pollone Mine	[Halotrichite] Benvenuti et al. (1990)
Stazzema Sant'Anna di Stazzema ⓘ Monte Arsiccio Mine	[Halotrichite] Biagioni et al. (2019) +1 other reference
Metropolitan City of Florence Gambassi Terme Podere Giuseppe ⓘ Cetine di Camporbiano Mine (Le Cetine; Cetine di Volterra; Cetine di Gambassi)	[Halotrichite] Betti et al. (2017)
Pisa Province Pomarance ⓘ Libbiano	[Pickeringite] Orlandi (2005)
Siena Province Chiusdino ⓘ Le Cetine di Cotorniano mine	[Halotrichite, Pickeringite] Sabelli et al. (1984) +1 other reference
Japan
Akita Prefecture Kazuno City ⓘ Osarizawa Mine	[Halotrichite] - (n.d.)
Hokkaidō Prefecture Iburi Subprefecture Usu District ⓘ Mount Usu (Usu volcano)	[Pickeringite] Matsubara (2002)
Oita Prefecture Beppu City ⓘ Beppu hot springs	[Halotrichite] Ueno Scientific Co. specimen
Tokushima Prefecture Tokushima City ⓘ Bizan (Otakiyama)	[Pickeringite] - (T. Minakawa, Univ. Ehime)
Yamagata Prefecture Mogami District Mogami ⓘ Fukufune deposit	[Halotrichite] LIN et al. (2020)
Kenya
Trans-Nzoia County Mount Elgon ⓘ Kitum Cave	[Halotrichite] Bowell et al. (1996)
Kyrgyzstan
Batken Region Kadamjay District ⓘ Chauvai (Chauvay) Sb-Hg Deposit	[Halotrichite] Kolesar et al. (1993)
Lebanon
South Governorate Jezzine District ⓘ Bhanine Valley	[Halotrichite] Kruszewski (2019)
Mexico
Chihuahua Aquiles Serdán Municipality ⓘ Santa Eulalia Mining District	[Halotrichite] Prescott
Durango Cuencamé Municipality Velardeña District Velardeña ⓘ Santa María Mine	[Halotrichite] Foshag (1931) +1 other reference
Mapimí Municipality Mapimí ⓘ Ojuela Mine	[Halotrichite, Pickeringite]
Guerrero Taxco de Alarcón ⓘ El Fraile mine	[Pickeringite] Yta et al. (2005)
ⓘ Guerrero I Mine	[Pickeringite] Yta et al. (2005)
Mexico Temascaltepec Municipality Temascaltepec de González (Temascaltepec) ⓘ Rosario Mine	[Halotrichite] Panczner (1987)
Sonora Santa Cruz Municipality Milpillas ⓘ Milpillas Mine	[Halotrichite] Jones et al. (2021)
Morocco
Marrakesh-Safi Region Marrakech Prefecture Bour Cercle ⓘ Kettara mine	[Halotrichite] Hakkou et al. (2008)
Netherlands
ⓘ Limburg	[Halotrichite] T.G. Nijland
Kerkrade ⓘ Willem-Sophia mine	[Halotrichite] Mestrom (2023)
New Zealand
Auckland Region Kawau Island ⓘ Kawau Island Copper Mine	[Halotrichite] Collection of Rod Martin
Bay of Plenty Region Rotorua District ⓘ Te Kopia geothermal area	Martin et al. (1999)
ⓘ Whakaari (White Island)	[Halotrichite] Cody et al. (1979)
Waikato Region Taupo District Orakeikorako Thermal Area (Orakei Korako; The Hidden Valley) ⓘ Ruatapu Cave (Alum Cave)	[Halotrichite] Rod Martin et al. (NZ)
Wairakei ⓘ Lake Rotokawa	[Halotrichite] Collection of RJ Martin
Thames-Coromandel District Coromandel peninsula Whitianga ⓘ Whitianga Quarry	[Halotrichite] Sameshima (1986)
Nicaragua
León Department ⓘ Cerro Negro volcano	[Halotrichite, Pickeringite] Stoiber et al. (1974)
La Paz Centro Momotombo volcano ⓘ Outwash basin	[Pickeringite] Hynek et al. (2013, March) +1 other reference
Telica Telica Volcano ⓘ San Jacinto mudpots	[Pickeringite] Hynek et al. (2013, March) +1 other reference
North Macedonia
Lipkovo Municipality ⓘ Lojane	[Pickeringite] Kolitsch et al. (2018)
Norway
Buskerud ⓘ Kongsberg silver mining district ?	[Halotrichite] Schumacher (1801) +1 other reference
Innlandet Lom Bøverdalen ⓘ Sulheim	[Halotrichite] Neumann (1985)
ⓘ Tessefaret	[Halotrichite] Kvamsdal (1990)
Ringebu Fåvang ⓘ Høstseter	[Pickeringite] Broch (1931)
Sør-Fron ⓘ Tofte Farm	[Halotrichite] Caillere et al. (1968) +1 other reference
Nordland Fauske ⓘ Storhelleren	[Halotrichite] Raade (1989)
Oslo Gamle Oslo ⓘ Konowsgate 1	[Halotrichite] Neumann (1985)
Telemark Skien Flakvarp Torsberg ⓘ Dragehullet	[Halotrichite] Larsen (1993)
Troms og Finnmark Balsfjord ⓘ Takvatnet Roadcut	[Halotrichite] Nordrum (2000)
Trøndelag Orkland Meldal Løkken Verk ⓘ Gammelgruva	[Halotrichite] Jørgensen et al. (2001)
Vestland Kvinnherad Ølve mining district ⓘ Attramadalen Mines (Atramdal)	[Halotrichite] Ellingsen (1989)
Stord Huglo Island ⓘ Tveit Mine	[Halotrichite]
Pakistan
Khyber Pakhtunkhwa Province Nowshera District Jehangira ⓘ Khawrai (Khawari)	[Halotrichite, Pickeringite] Niazi (2023)
Swabi District ⓘ Tarbela dam	[Pickeringite] M. Qasim Jan et al. (1985)
Peru
Arequipa Caylloma Province Chivay District ⓘ La Calera spring	[Pickeringite] Tyc et al. (2022)
ⓘ Pinchollo geyser	[Halotrichite, Pickeringite] Ciesielczuk et al. (2013)
ⓘ Paclla geyser	[Halotrichite, Pickeringite] Tyc et al. (2022)
Ayacucho Lucanas Province Huac-huas District ⓘ Javier Mine (Javier Ortega Mine)	[Halotrichite] Hyršl (2010) +1 other reference
Huancavelica Huancavelica Province Huachocolpa District Huachocolpa mining district ⓘ Coquito Mine	[Halotrichite] Pérez-Puig Obieta et al. (2013)
Poland
Lesser Poland Voivodeship Olkusz County Gmina Olkusz ⓘ Pomorzany Mine	[Halotrichite] Cabała et al. (2008)
Tarnów County Gmina Ciężkowice ⓘ Stone Town Nature Reserve	[Pickeringite] Marszałek +2 other references
Lower Silesian Voivodeship Kamienna Góra County Gmina Marciszów ⓘ Wieściszowice	[Halotrichite, Pickeringite, Pickeringite var: Ferropickeringite] Mochnacka et al. (2012) +1 other reference
ⓘ Colourful Lakelets	[Halotrichite] Balcerzak et al. (1992)
ⓘ Hoffnung Mine	[Halotrichite, Pickeringite, Pickeringite var: Ferropickeringite] Mochnacka et al. (2015)
Kłodzko County Nowa Ruda Słupiec Mine ⓘ Słupiec heap ?	[Halotrichite] Ciesielczukk
Silesian Voivodeship Rybnik County Gmina Czerwionka-Leszczyny ⓘ Dębieńsko Mine heap	[Pickeringite] Kruszewski (2013)
ⓘ Upper Silesian Coal Basin	[Pickeringite] Kruszewski (2013)
Wodzisław County Radlin ⓘ Marcel mine heap	[Halotrichite] Kruszewski et al. (2020)
Portugal
Aveiro Albergaria-a-Velha Branca ⓘ Palhal Mine	[Halotrichite] Marques de Sá et al. (2010)
Arouca ⓘ Serrinha waste pile - Pejão mining area - Douro Coalfield	[Pickeringite] Joana Ribeiro et al. (2013)
Beja Aljustrel Aljustrel e Rio de Moinhos Aljustrel Mine ⓘ Algares deposit	[Halotrichite, Pickeringite]
ⓘ Moinho deposit	[Halotrichite] Nunes (n.d.)
Mértola Corte do Pinto ⓘ São Domingos Mine	[Halotrichite] Nunes (n.d.) +1 other reference
Romania
Alba County Roșia Montană ⓘ Roşia Montană	[Halotrichite, Pickeringite] Onac (2003)
Caraş-Severin County Băile Herculane ⓘ Diana Cave	[Halotrichite, Pickeringite] B. Onac et al (2009, July)
Harghita County ⓘ Bălan	[Halotrichite, Pickeringite] Edited by Szakáll-Kristály (2010)
Cozmeni ⓘ Lăzăreşti	[Halotrichite] minerals-of-the-carpathians.eu (2008)
Hunedoara County Domogled - Cernei Valley National Park ⓘ Limestone caves	[Halotrichite, Pickeringite] Onac (2009)
Maramureș County Baia Mare ⓘ Herja Mine	[Halotrichite] Own collect.
Săsar-Valea Roșie mining area ⓘ Săsar Mine	[Halotrichite] Lavinsky (n.d.)
Băiuț ⓘ Breiner Mine (Brainer Mine; Breiner deposit)	[Halotrichite] A. Januszewska PXRD data / Januszewska et al. (in preparation)
ⓘ Johan Hell Mine	[Halotrichite, Pickeringite] abstract. +3 other references
Russia
Chelyabinsk Oblast ⓘ Chelyabinsk coal basin	[Pickeringite] Cesnokov et al. (1998)
Ilmen Mountains ⓘ Chernaya Rechka reserve-guard station	[Pickeringite] Pekov (1998)
Chukotka Autonomous Okrug Anadyrsky District Tamvatnei massif ⓘ Tamvatnei Hg deposit	[Halotrichite] Pavel M. Kartashov (n.d.)
Kamchatka Krai Milkovsky District ⓘ Tolbachik Volcanic field	[Pickeringite] Gerhard Möhn collection
Ust-Bolsheretsky District ⓘ Verkhne–Koshelevsky geothermal field	[Halotrichite] Zhitova et al. (2023)
Yelizovsky District Kronotsky Reserve ⓘ Uzon Caldera	[Halotrichite, Pickeringite] Active Volcanoes of Kamchatka
ⓘ Mutnovskoe	[Halotrichite, Pickeringite] [Der Aufschluss 1995:4 p163-180] +1 other reference
ⓘ Mutnovsky volcano	[Halotrichite, Pickeringite] www.kscnet.ru (2019)
ⓘ Dachnoe thermal field	[Halotrichite] Zhitova et al. (2022)
ⓘ Donnoe fumarole field	[Halotrichite] Zhitova et al. (2022)
ⓘ Severo‐Mutnovsky thermal fields	[Pickeringite] Bortnikova et al. (2009, February)
Sakha Oymyakonsky District ⓘ Upper Khangalas Creek	[Pickeringite] Kudrin et al. (2021)
Sakhalin Oblast Kuril Islands Severo-Kurilsky District Paramushir Island ⓘ Ebeco Volcano (Ebeko Volcano)	[Halotrichite] Bortnikova et al. (2005)
Sverdlovsk Oblast Kirovgrad ⓘ Kalata Mine	[Pickeringite] Dana 7:II:502
Zabaykalsky Krai Kalarsky District Kodar–Udokan ore district Udokan ⓘ Udokan mine	[Halotrichite] Gongalsky et al. (2019)
Nerchinsky District Adun-Cholon Range ⓘ Sherlova Gora	[Halotrichite, Pickeringite] Kasatkin et al. (2014)
Petrovsk-Zabaykalsky District ⓘ Bom-Gorkhon Mine	[Halotrichite] Eremin et al. (2014)
Senegal
Ziguinchor Region ⓘ Djiguinoum Valley	[Halotrichite, Pickeringite] Montoroi (1995)
Serbia
Central Serbia Belgrade Voždovac ⓘ Šuplja Stena Mine	[Halotrichite] Jahrestagung der DGK et al. (2002)
Slovakia
Banská Bystrica Region Banská Štiavnica District ⓘ Banská Štiavnica	[Halotrichite]
Revúca District Chyžné ⓘ Herichová	[Halotrichite] Bohuslav Burev collection
Nandraž ⓘ Elena Mine	[Halotrichite] Koděra et al. (1986)
Žarnovica District Hodruša-Hámre Hodruša-Hámre mines ⓘ Rozália Mine	[Halotrichite] Martin Števko-unpublished +1 other reference
Nová Baňa ⓘ Nová Baňa deposit	[Halotrichite] Koděra et al. (1986)
Košice Region Gelnica District ⓘ Smolník	[Halotrichite, Pickeringite] Duda
ⓘ Smolník Cu-Fe-S deposit	[Halotrichite, Pickeringite] Koděra (1990)
Košice-okolie District Nižná Myšľa ⓘ Andesite quarry	[Halotrichite] Ďuďa R. et al. (1985)
Vyšný Medzev ⓘ Luciabaňa Mine	[Pickeringite] Koděra et al. (1986)
Prešov Region Prešov District Červenica ⓘ Dubník	[Halotrichite, Pickeringite, Pickeringite var: Kasparite] Duda et al. (1992)
ⓘ Libanka	[Halotrichite, Pickeringite, Pickeringite var: Ferropickeringite, Pickeringite var: Kasparite] Koděra et al. (1986)
ⓘ Jozef adit	[Pickeringite] David Parfitt collection
ⓘ Slávik adit	[Halotrichite] Koděra et al. (1986)
Vranov nad Topľou District Komárany ⓘ Merník mercury deposit	[Halotrichite] Ďuďa
Trenčín Region Prievidza District Handlová ⓘ Handlová coal mine	[Pickeringite] Myšľan P. et al. (Slovenská republika)
Slovenia
Idrija ⓘ Idria Mine (Idrija Mine)	[Halotrichite] Palache et al. (1951)
South Africa
Eastern Cape Sarah Baartman District Municipality Sundays River Valley Local Municipality ⓘ Alum Kranz Farm	[Pickeringite] Cairncross et al. (1995)
KwaZulu-Natal eThekwini Metropolitan Municipality Durban Umhlatuzana valley ⓘ Clairwood quarries	[Halotrichite] Cairncross et al. (1995)
Westville ⓘ S. A. Crushers quarry	[Halotrichite] Cairncross et al. (1995)
Western Cape Central Karoo District Municipality Beaufort West Local Municipality Beaufort West ⓘ Rietkuil	[Pickeringite] Cairncross et al. (1995)
Spain
Andalusia Almería Benahadux ⓘ La Partala Mines	[Halotrichite] Alonso et al. (Almería)
Cuevas del Almanzora Las Herrerías ⓘ Fumarole field	[Pickeringite, Pickeringite var: Kasparite] Frias +2 other references
Las Herrerías Mines ⓘ Fossil fumaroles	[Pickeringite] Martinez Frias et al. (1992)
Sierra Almagrera ⓘ Jaroso Ravine	[Halotrichite] Frost +4 other references
Villaricos ⓘ Dolores smelter slag locality	[Halotrichite] Navarro et al. (2008)
ⓘ Santa Ana smelter slag locality	[Halotrichite] Navarro et al. (2008)
Níjar ⓘ Rodalquilar	[Halotrichite] Andreas Brand collection
Cerro del Cinto ⓘ Dique 2	[Pickeringite] Sintes et al. (2025)
ⓘ Filón 340	[Halotrichite] Sainz de Baranda Graf et al. (2023)
Pechina Baños de Alhamilla ⓘ Mina Casualidad	[Pickeringite] Rewitzer et al. (2020)
Santa Cruz de Marchena ⓘ Varios Amigos Mine	[Pickeringite] Sainz de Baranda Graf et al. (2025) +1 other reference
Huelva Alosno Tharsis ⓘ Tharsis Mines	[Halotrichite, Pickeringite] Valente et al. (2013)
ⓘ Esperanza	[Halotrichite, Pickeringite] Valente et al. (2013)
ⓘ Filón Centro	[Halotrichite] Valente et al. (2013)
Minas de Riotinto Rio Tinto Mines ⓘ Alfredo pit	[Halotrichite] Calvo (1999)
Nerva ⓘ Peña del Hierro Mine	[Pickeringite] Romero et al. (2006) +1 other reference
Aragon Teruel Libros ⓘ Libros sulphur mines	[Pickeringite] Calvo Rebollar (2018)
Asturias Gozon ⓘ Llumeres	[Pickeringite] Calvo Rebollar (2014)
Illano ⓘ San Esteban de los Buitres	[Pickeringite] Manuel Echevarria Rodriguez
Canary Islands Santa Cruz de Tenerife Province La Palma Cumbre Vieja Area ⓘ Tajogaite Volcano	[Halotrichite] Campeny et al. (2023)
Catalonia Barcelona Baix Llobregat Cervelló ⓘ Riera de Cervelló Mines	[Halotrichite, Pickeringite] Joan Rosell (2022)
Gavà Bruguers ⓘ Elvira Mine	[Halotrichite] Rafael Marin's Collection +1 other reference
Molins de Rei Sant Bartomeu de la Quadra ⓘ Can Tintorer Mines	[Halotrichite] Mingueza et al. (Min. Catalunya/Paragénesis, 2025)
Barcelonès Barcelona city Collserola mountain range ⓘ Santa Creu d'Olorda	[Halotrichite]
ⓘ Sot de les Mines	Mata i Perelló (1990)
Maresme Tordera ⓘ Rialls quarry (Montpalau quarry) ?	FMF Forum
Lleida Aran (Val d'Aran; Aran Valley) Bausen ⓘ Sa Plan mines	[Halotrichite] Mata i Perelló (1990)
Tarragona Priorat La Vilella Alta ⓘ Alum mines	[Pickeringite] Joan Abella i Creus (Joanabellacreus@gmail.com)
Extremadura Cáceres Tajo-Salor Aliseda ⓘ Pastora Mine	[Halotrichite, Pickeringite] Crespo et al. (2017)
Galicia A Coruña Santiago de Compostela Aríns ⓘ Fornás Mine	[Halotrichite] Pascual +1 other reference
Murcia Cartagena Llano del Beal Cabezo de Ponce ⓘ Sultana open pit (Sultana Mine) ?	[Pickeringite] FMF Forum
Sweden
Dalarna County Falun ⓘ Falun mine	[Halotrichite] Palache et al. (1951)
Switzerland
Fribourg Broye Estavayer Murist ⓘ La Molière Quarry	[Halotrichite] Stalder et al. (1998)
Grisons Bernina Region Poschiavo Bernina Pass area ⓘ Laguné Valley	[Halotrichite] Romani (2000)
ⓘ La Motta	[Halotrichite] Romani (2000)
Ticino Locarno Brissago ⓘ Fonte Vittoria	[Pickeringite] Stalder et al. (1998)
Uri Reuss Valley Gurtnellen Intschi ⓘ Alum mine	[Pickeringite] Stalder et al. (1998)
Silenen ⓘ Maderanertal	[Pickeringite, Pickeringite var: Manganese-bearing Pickeringite] Palache et al. (1951)
Valais Conthey Nendaz Aproz ⓘ Pyrite mine	[Pickeringite] Stalder et al. (1998)
Goms Ernen Rhône gorge (Rhone gorge) ⓘ Copper mineralization	[Pickeringite] Stalder et al. (1998)
Saint-Maurice Salvan Les Marécottes La Creusaz ⓘ La Creusaz U prospect	[Halotrichite] Meisser (2012)
Sierre Anniviers Ayer ⓘ Gollyre Mine	[Halotrichite] Ansermet (2012)
ⓘ Grand-Praz Mine	[Pickeringite] Ansermet (2012)
Saint-Luc ⓘ Forêt du Lâche	[Pickeringite] Ansermet (2012)
ⓘ Forêt du Rochet	[Halotrichite] Stalder et al. (1998)
ⓘ Les Moulins Mine	[Pickeringite] Ansermet (2012)
Taiwan
Taipei City Beitou district ⓘ Beitou (Peitou; Hokuto springs)	[Halotrichite]
Tajikistan
Sughd Mastchoh District Altyn-Topkan ore field (Zarnisor ore field) ⓘ Altyn-Topkan deposit (Altyntopkan deposit; Altyn-Topkan Mine; Zarnisor deposit; Zarnisori Shimoli deposit; Northern Zarnisor deposit)	[Pickeringite] Xinjiang Tacheng International Resources Ltd.
Togo
Centrale Region Sotouboua Prefecture ⓘ Pagala prospect	[Halotrichite] Wolfgang Hampel (2013)
UK
England North Yorkshire Craven Ingleton ⓘ Mealbank Quarry ?	[Halotrichite] Ryback et al. (2001)
Scotland Renfrewshire ⓘ Paisley	[Halotrichite] Livingstone et al. (1983)
Wales Gwynedd Ganllwyd ⓘ Gwynfynydd Mine	[Halotrichite, Pickeringite]
Isle of Anglesey Amlwch ⓘ Parys Mountain Mines	[Halotrichite, Pickeringite]
Merthyr Tydfil Treharris ⓘ Deep Navigation Colliery	[Halotrichite] Ian Jones or national Museum of Wales ...
Ukraine
Crimea Bakhchysarai Trudolyubovka ⓘ Pervomaiskii quarry	[Pickeringite] Kasatkin (2019)
Simferopol area Petropavlovka Village area ⓘ Petropavlovskii quarry	[Halotrichite, Pickeringite] A. Tischenko. Minerals of the Crimea - ...
Sevastopol Balaklava district ⓘ Cape Fiolent	[Pickeringite] Dobrovolskaya T.I. (2004)
USA
Alabama Coosa County ⓘ Alum Bluff prospect	[Halotrichite] Cook et al. (1982)
Madison County ⓘ Alum Cave Hollow	[Halotrichite] Dean (1995)
Arizona Cochise County ⓘ Bisbee	[Halotrichite, Pickeringite] Anthony et al. (1995)
ⓘ Higgins Mine	[Halotrichite] Grant et al. (2005)
ⓘ Shattuck Mine	[Pickeringite] Anthony et al. (1995)
Perilla Mountains Douglas Mining District (Ash Springs Mining District) ⓘ East of Douglas	[Pickeringite] Galbraith (1959)
ⓘ Tombstone Mining District	[Halotrichite] Galbraith (1959)
ⓘ Unspecified locality	[Pickeringite] Anthony et al. (1995)
Coconino County ⓘ Cameron Mining District	[Pickeringite] Anatoly Kasatkin analyses
ⓘ Cameron	[Halotrichite, Pickeringite] Bollin et al. (1958)
Huskon Mines (Huskon group) ⓘ Huskon No. 1 Mine (Charles Huskon #1)	[Halotrichite] Scarborough (1981)
ⓘ Huskon No. 10 Mine (Charles Huskon #10; Huskon #10)	[Halotrichite] Anthony et al. (1995)
ⓘ Unnamed U prospect [1]	[Pickeringite] Grant et al. (2005)
ⓘ Yazzie No. 101 Mine	[Halotrichite] Scarborough (1981)
Orphan Mining District Grand Canyon Village ⓘ Orphan Mine (Orphan lode)	[Halotrichite] Anatoly Kasatkin analyses
San Franciscan volcanic field (San Francisco Peaks; San Francisco Mts) ⓘ Sunset Crater (Sunset Peak)	[Pickeringite] Grant et al. (2005) +1 other reference
Gila County Banner Mining District Hayden area Chilito ⓘ 79 Mine	[Halotrichite] Keith (1972)
Salt River Mining District Cibecue Creek-Salt River Draw confluence with the Salt River area Rock Canyon deposit area ⓘ Pueblo Canyon	Granger (1969) +1 other reference
La Paz County Buckskin Mountains Santa Maria Mining District (Planet Mining District; Swansea Mining District; Bill Williams Mining District) Planet Planet Mine group ⓘ Planet Mine	[Halotrichite] Robert Lavinsky specimen
Mohave County Hualapai Mountains Hualapai Mining District Pine Peak ⓘ Antler Mine	[Halotrichite]
Pinal County ⓘ Ray	[Halotrichite] Jones et al. (1983)
San Manuel Mine ⓘ San Manuel orebody	[Pickeringite] Anthony et al. (1976) +1 other reference
Scott Mountain ⓘ Ray Mine	[Halotrichite] Jones et al. (1983)
Santa Cruz County Patagonia Mountains Harshaw Mining District Alum Gulch Flux Gulch ⓘ Flux Mine	[Halotrichite] Museum Victoria specimen # M 36234
Palmetto Mining District ⓘ Denver Mine (El Toro Mine)	[Halotrichite] Bayliss et al. (1985) +1 other reference
Yavapai County Black Hills (Black Hill Range) Verde Mining District Jerome ⓘ United Verde Mine	[Halotrichite] John Sobolewski collection
Arkansas ⓘ Hot Spring County	[Pickeringite] Howard (2007)
ⓘ Montgomery County	[Halotrichite] Ransom (1974)
ⓘ White County	[Halotrichite] Howard (2007)
California Alameda County Livermore Mining District (Tesla District) Livermore ⓘ Eureka tunnel	[Halotrichite] Murdoch (1966)
Oakland Hills (San Leandro Hills) Oakland Leona Heights Leona Heights deposit ⓘ Alma Mine	[Halotrichite] Committee et al. (1989)
ⓘ Leona Mine (Leona Heights Mine)	[Halotrichite] Committee et al. (1989)
Alpine County Monitor - Mogul Mining District Leviathan Peak ⓘ Leviathan Mine	[Halotrichite] Rocks & Minerals: 16: 411. +6 other references
Contra Costa County Clayton Mount Diablo (Mt Diablo) ⓘ Mount Diablo Mine	[Halotrichite] Ross (1940a) +3 other references
ⓘ El Dorado County	[Halotrichite] Murdoch (1966)
Imperial County Niland ⓘ Davis–Schrimpf Fumarole Field (Mud Volcanoes area; Mud Pots area)	[Halotrichite, Pickeringite] Adams et al. (2014)
Salton Sea ⓘ Niland Fumarole Field	[Halotrichite, Pickeringite] Adams et al. (2014)
ⓘ Inyo County	[Pickeringite] Roberts et al. (1974)
Bishop area ⓘ Mountains West of Bishop	[Pickeringite] Murdoch (1966)
Coso Hot Springs ⓘ Coso Hot Springs deposit	[Halotrichite]
ⓘ Coso Mine (Devil's Kitchen; Atlas; Lynch & Lynch; Nicol; Walley-Mickey & Wheeler)	[Halotrichite] www.mineralsocal.org (1999)
White Mountains ⓘ Pacific Coast Pyrophyllite Mine	[Halotrichite] Baur et al. (1957) +3 other references
Kern County Mojave-Rosamond Mining District (Mojave Mining District) Mojave Soledad Mountain (Butte Mountain) Soledad Mountain deposit Soledad Mountain project (Victory) ⓘ Golden Queen Mine	[Halotrichite] Pemberton (1983) +1 other reference
Randsburg ⓘ Kelly Mine	[Pickeringite] Bob Bartsch collection +1 other reference
Los Angeles County ⓘ Cahuenga Peak	[Halotrichite] Neuerberg (1951) +4 other references
ⓘ Neuerberg Locality 10	[Halotrichite] Neuerberg (1951)
Merced County Stayton Mining District (McLeod Mining District; Panoche Mining District) Antimony Peak ⓘ Stayton Mine (Stayton Quicksilver Mine; Pacific claim of Stayton group)	[Halotrichite, Pickeringite] Pemberton (1983) +2 other references
Mono County White Mountains White Mountain Peak ⓘ Champion Mine	[Halotrichite, Pickeringite] ...
San Benito County Stayton Mining District (McLeod Mining District; Panoche Mining District) Santa Ana Mountain ⓘ Yellow Jacket Mine	[Halotrichite] Cooper et al. (1989)
ⓘ San Bernardino County	[Pickeringite] Roberts et al. (1974) +1 other reference
Calico Mts (Calico Hills) Calico District (Daggett District; Calico-Daggett area) Calico ⓘ Sulphur Hole (Sulfur Hole; Sulphur pit)	[Halotrichite] part 2 +4 other references
Ontario Peak ⓘ Unnamed Pickeringite occurrence [1]	[Pickeringite] Murdoch (1966) +2 other references
Red Mountain [town] (Osdick) ⓘ California Rand No. 2 Mine (California Rand Silver Mine; California Rand Mine; Kelly Mine; Kelly Rand Mine)	[Pickeringite] Rock Currier
Silver Lake Mining District Soda Mountains Zzyzx ⓘ Blue Bell Mine	[Halotrichite, Pickeringite] Thorne (n.d.)
San Diego County Lakeside ⓘ El Capitan Quarry	[Halotrichite] SDSU Geology Department unpublished ...
Santa Barbara County ⓘ Hope Ranch [2]	[Halotrichite] Kampf et al. (2024)
ⓘ Shasta County	[Pickeringite] Roberts et al. (1974)
Klamath Mountains West Shasta Copper - Zinc Mining District Iron Mountain [town] Iron Mountain ⓘ Iron Mountain Mine (Number 8; Confidence; Old Mine)	[Halotrichite] Nordstrom et al. (1999) +1 other reference
Lassen Volcanic National Park ⓘ Lassen Peak	[Halotrichite] …Volcano Letter o. 293: 1-3 1930: 118 +4 other references
Sonoma County West Mayacmas Mining District ⓘ The Geysers	[Halotrichite, Pickeringite] Vonsen (1946) +3 other references
Trinity County Island Mountain Moose Peak ⓘ Island Mountain Mine (Dahrman group; Island Mountain Consolidated Mine; Annex; Leach; Merritt Gore; Shotgun)	[Halotrichite] Pemberton (1983) +1 other reference
Colorado Boulder County ⓘ Marshall	[Halotrichite] Eckel et al. (1997)
ⓘ White Rock	[Halotrichite] Eckel et al. (1997)
Delta County ⓘ Gunnison Forks (Sulphur Mine; Thomas)	[Pickeringite] Eckel et al. (1997)
Dolores County ⓘ Lone Cone Mining District (Dunton Mining District)	[Halotrichite] Eckel et al. (1997)
ⓘ Emma Mine (Barbara; Normandic; Brooklyn; MS 18498; Sirius; MS 12931; Cynthia; Orion; MS 12953a; Modern Mines)	[Halotrichite] Eckel et al. (1997)
Eagle County Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District) Gilman ⓘ Eagle Mine	[Halotrichite] Eckel et al. (1997)
El Paso County Colorado Springs ⓘ Garden of the Gods and vicinity	[Pickeringite] Eckel et al. (1997)
Fremont County Cañon City Mining District Cañon City ⓘ Unnamed ridge	[Pickeringite] Eckel et al. (1997)
Jefferson County Foothill Mining District ⓘ US Highway 285 roadcut	[Halotrichite] Eckel et al. (1997)
La Plata County La Plata Mining District (California Mining District) ⓘ Bessie G Mine	[Pickeringite] collected by Eckhard D. Stuart +1 other reference
Mineral County Creede Mining District ⓘ Emperius Mine	[Halotrichite] Eckel et al. (1997)
Otero County ⓘ Fowler	[Halotrichite, Pickeringite] Eckel et al. (1997)
Ouray County ⓘ Brown Mountain	[Halotrichite] Eckel et al. (1997)
Gray Copper Gulch ⓘ Indiana Mine	[Halotrichite] Eckel et al. (1997)
Pitkin County Columbia Mining District (Ashcroft Mining District) ⓘ Unnamed iron deposit	[Halotrichite] Eckel et al. (1997)
Slick Rock Mining District ⓘ Veta Mad Mine	[Halotrichite] In the collection of Alex Earl
Connecticut Fairfield County Trumbull Long Hill ⓘ Old Mine Park (Old Tungsten Mine)	[Pickeringite] Sullivan (1985)
ⓘ Old Mine Plaza construction site	[Pickeringite] J. Zolan Collec.
Litchfield County Harwinton ⓘ Pegmatite quarry and ultramafic rock	[Halotrichite, Pickeringite] Harold Moritz collection
Watertown ⓘ State Route 8 interchange 34 (formerly 37)	[Pickeringite] Januzzi et al. (1976)
Middlesex County East Hampton Airline Railroad ⓘ Linkpot cut	[Pickeringite] Schooner (1958)
Cobalt ⓘ Great Hill cobalt mines	[Pickeringite] Januzzi et al. (1976)
ⓘ State Forest Quarry No. 2	[Pickeringite] Januzzi et al. (1976)
Portland Collins Hill Strickland pegmatite ⓘ Schoonmaker Mine	[Pickeringite] Schooner (1955)
ⓘ Strickland Quarry	[Pickeringite] Ralph Lieser of Pappy’s Beryl Shop +3 other references
ⓘ Death Valley National Park	[Halotrichite] David Eicher photo
Georgia Rabun County ⓘ Rabun Gap	[Halotrichite] Cook (1978)
Hawaii Hawaii County ⓘ Kilauea Volcano	[Halotrichite] Jesse Crawford specimen
ⓘ Unspecifed lava tubes (lava caves)	[Halotrichite] Hon et al. (2009)
Iowa ⓘ Appanoose County	[Halotrichite] Paul J. Horick (1974)
ⓘ Mahaska County	[Halotrichite] Paul J. Horick (1974)
ⓘ Marion County	[Halotrichite] Paul J. Horick (1974)
ⓘ Monroe County	[Halotrichite] Paul J. Horick (1974)
ⓘ Van Buren County	[Halotrichite] Paul J. Horick (1974)
ⓘ Kentucky	[Pickeringite] Anderson (1994)
Jefferson County ⓘ Southwestern Jefferson County	[Halotrichite] Goldstein (2006)
Lincoln County ⓘ Black Shales	[Halotrichite] Goldstein (2006)
Halls Gap ⓘ US highway 27 roadcut	[Halotrichite] Goldstein (1997) +1 other reference
Nelson County Bardstown ⓘ KY 245 roadcuts (1)	[Halotrichite] Goldstein (2006)
Pulaski County ⓘ Black shales	[Halotrichite] Goldstein (2006)
Massachusetts Franklin County Charlemont ⓘ Hawks Pyrite Mine (Mount Peak Mine)	[Pickeringite] Gleba (2008)
Middlesex County Ashland ⓘ Aggregate Industries Quarry (Bayer-Mingolla Quarry; Trimount Quarry)	[Pickeringite] Gleba (2008)
Norfolk County ⓘ Braintree	[Halotrichite] Gleba (2008)
ⓘ Quincy	[Halotrichite, Pickeringite] Gleba (2008)
Worcester County Holden ⓘ Quabbin Aqueduct Shaft #2 locality	[Pickeringite] Gleba (2008)
Michigan Iron County Iron River Mineral Hills ⓘ Homer-Wauseca Group	[Halotrichite] Morris (1983)
Mastodon Township Alpha ⓘ Book Mine	[Pickeringite] Heinrich et al. (2004)
Missouri Barton County ⓘ McCarrow's Mine	[Pickeringite] Dana 6: 1083.
Boone County ⓘ Finger Lakes State Park	[Halotrichite] Sherwood et al. (1998)
Macon County ⓘ Bee-Veer mine	[Halotrichite] Sherwood et al. (1998)
Monroe County ⓘ Paris	[Halotrichite] Sherwood et al. (1998)
ⓘ Randolph County	[Halotrichite] Sherwood et al. (1998)
Montana Silver Bow County ⓘ Butte Mining District (Summit Valley Mining District)	[Pickeringite] Guilbert and Zeihen +3 other references
Nebraska Dixon County ⓘ Volcano Hill	[Halotrichite] R.M. Joeckel et al. (2011)
Lancaster County ⓘ Denton	[Halotrichite] Pabian (1971)
Nemaha County Brownville ⓘ Indian Cave Sandstone	[Halotrichite] Robert Matthew Joeckel et al. (2007)
ⓘ Pony Creek Shale	[Halotrichite] Pabian (1971)
Otoe County ⓘ Willard formation	[Halotrichite] Robert Matthew Joeckel et al. (2007)
Pawnee County ⓘ Du Bois	[Halotrichite] Pabian (1971)
ⓘ White Cloud formation	[Halotrichite] Robert Matthew Joeckel et al. (2007)
Saunders County ⓘ Valparaiso	[Halotrichite] Pabian (1971)
Nevada Carson City ⓘ Carson City Mining District	[Pickeringite] Castor et al. (2004)
Churchill County ⓘ Camp Gregory Mining District	[Pickeringite] NBMG Bull 83 Geology and Mineral ...
Elko County Bootstrap Mining District ⓘ Meikle Mine	[Halotrichite] Barrick Gold Corporation
Esmeralda County Alum Mining District ⓘ Alum mine	[Pickeringite] Castor et al. (2004)
Goldfield Mining District ⓘ Combination Mine	[Halotrichite] Castor et al. (2004)
Goldfield ⓘ Red Top Mine	[Halotrichite] Castor et al. (2004)
ⓘ January mine	[Halotrichite] Castor et al. (2004)
ⓘ Sweeney lease	[Halotrichite] Castor et al. (2004)
Eureka County Carlin Trend Maggie Creek Mining Subdistrict ⓘ Gold Quarry Mine	[Halotrichite] Newmont Mining Corporation
Humboldt County Osgood Mountains Potosi Mining District Adam Peak Getchell Mine ⓘ Summer Camp pit	[Halotrichite, Pickeringite] Bowell et al. (2005)
Pershing County Tobin and Sonoma Range Mining District ⓘ Big Mike Mine	[Pickeringite] Peterson et al. (2006)
Storey County ⓘ Comstock Mining District	[Halotrichite, Pickeringite] Castor et al. (2004)
Washoe County ⓘ Peavine Mining District	[Halotrichite] Castor et al. (2004)
Steamboat Springs Mining District ⓘ Steamboat Hot Springs	[Pickeringite] Castor et al. (2004)
Wedekind Mining District ⓘ Wedekind shaft	[Pickeringite] Castor et al. (2004)
New Hampshire Grafton County Campton ⓘ Beebe River "Gold" mine	[Halotrichite] Mortimer (2007)
Hillsborough County Wilton ⓘ Wilton Crushed Stone Quarry	[Halotrichite] P. Cristofono collection
Rockingham County Newington Great Bay National Wildlife Refuge ⓘ National Refuge borehole (NR1)	[Halotrichite] Nora K. Foley et al. (2006)
New Jersey Sussex County Ogdensburg Sterling Hill ⓘ Sterling Mine	[Halotrichite] Dunn (1995)
New Mexico Grant County ⓘ Alum Mountain Mining District (Alum Mining District)	[Halotrichite] Northrop et al. (1996) +1 other reference
ⓘ Alunogen No. 2 Tunnel	[Halotrichite] USGS Bull 1451
McKinley County ⓘ Becenti Mine	[Halotrichite] NEW MEXICO GEOLOGY November 2004
Quay County ⓘ Tucumcari area	[Pickeringite] Palache et al. (1951) +1 other reference
Rio Arriba County ⓘ Abiquiu District	[Halotrichite, Pickeringite] Northrop et al. (1996)
San Miguel County ⓘ Tecolote District	[Pickeringite] Northrop et al. (1996)
Santa Fe County ⓘ La Bajada Mining District	[Halotrichite] Northrop et al. (1996)
ⓘ Old Placers District	[Pickeringite] Northrop et al. (1996)
Golden Ortiz Project ⓘ Dolores Tunnel	[Pickeringite] Northrop et al. (1996)
Taos County Cabresto Creek ⓘ Cabresto Lake prospect	[Halotrichite] New Mexico Bureau of Geology Mineral ...
Picuris District ⓘ Harding Mine	[Pickeringite] Northrop et al. (1996)
New York Essex County Crown Point Township ⓘ Crown Point Center	[Pickeringite] Jensen (1978)
ⓘ North Carolina	[Halotrichite]
Swain County ⓘ Great Smoky Mountains	[Halotrichite] Coskren et al. (2000)
ⓘ Road to Nowhere (Lakeview Drive)	[Halotrichite, Pickeringite] Environmental Geology: 45: 47. +1 other reference
Ohio Adams County Franklin Township Beaver Pond ⓘ Norfolk and Western Railroad cut	[Pickeringite] Carlson (2002)
Cuyahoga County Brook Park ⓘ Abrams Creek pickeringite occurrence	[Pickeringite] Carlson (2015)
Brooklyn Heights ⓘ West Creek	[Pickeringite]
Erie County Florence township ⓘ Vermillion River	[Pickeringite] Carlson (2015)
Franklin County Columbus ⓘ Bill Moose Run	[Pickeringite] King (n.d.)
ⓘ Glen Echo Ravine	[Pickeringite] Ernest H. Carlson. Jerret Whitford. ...
Huron County Huron River ⓘ Huron Shale burn site	[Halotrichite, Pickeringite] Richards et al. (2017)
Monroeville West Branch Huron River ⓘ Blue Bridge	[Halotrichite, Pickeringite] Carlson (2015)
Lorain County Mill Hollow-Bacon Woods Park ⓘ Vermillion River	[Pickeringite] Carlson (2015)
Meigs County Langsville ⓘ Old strip mine	[Pickeringite] Carlson (2015)
Ross County Paxton Township ⓘ Copperas Mountain	[Halotrichite, Pickeringite] Carlson (2015)
Stark County Minerva ⓘ Conrail Railroad cut	[Pickeringite] Carlson (2015)
Vinton County Brown township Sandy Run ⓘ Abandoned coal strip mines	[Halotrichite] Carlson (2015)
Oregon Lake County Lakeview ⓘ White King Mine	[Halotrichite] Rod Martin Collection
Pennsylvania Centre County State College Skytop ⓘ Interstate 99 Skytop roadcut	[Halotrichite, Pickeringite] U.S. Geological Survey/ U.s. Department ...
Montgomery County Lower Merion Township Pencoyd (West Manayunk) ⓘ Rock Hill Road	[Halotrichite] Samuel S. Gordon +1 other reference
Northumberland County ⓘ Burnside	[Pickeringite] Lapham et al. (1980)
Philadelphia County Philadelphia ⓘ Fairmount Park	[Halotrichite] Gordon (1922)
East Falls ⓘ Ridge Avenue and School Lane Quarries	[Halotrichite] Gordon
ⓘ Falls of Schuylkill	[Halotrichite] Gordon (1922)
ⓘ Wissahickon Valley	[Halotrichite] Gordon (1922)
Union County Winfield ⓘ Faylor-Middle Creek Quarry	[Halotrichite] Lapham et al. (1976)
ⓘ Westmoreland County	[Pickeringite] Luetcke (n.d.)
South Dakota Pennington County Keystone Gold Mining District ⓘ Bullion-Columbia Mine	[Pickeringite] Roberts et al. (1965)
ⓘ Holy Terror Mine	[Pickeringite] Roberts et al. (1965)
ⓘ Keystone Mine	[Pickeringite] Roberts et al. (1965)
Mystic ⓘ Burlington Railroad tunnel	[Halotrichite] Roberts et al. (1965)
Tennessee Monroe County Tellico Plains ⓘ Unnamed sulphate locality	[Halotrichite] Paris (2011)
ⓘ Morgan County	[Pickeringite] Wayne Osborne Collection
Sevier County ⓘ Alum Cave Bluff	[Halotrichite, Pickeringite] Flohr et al. (1995) +1 other reference
Texas El Paso County El Paso Franklin Mountains (Franklin Range) ⓘ Tom Mays Park Copper deposit	[Halotrichite] Smith (1991)
Utah Emery County Calf Mesa Mining District ⓘ Dexter group	[Halotrichite] Bullock (1981)
ⓘ Dexter No. 7 Mine	[Halotrichite] Rosenzweig et al. (1955) +1 other reference
ⓘ San Rafael River Mining District	[Halotrichite] Young et al. (1960)
ⓘ Temple Mountain Mining District	[Halotrichite] DANA R. KELLEY AND PAUL F. KERR (1958)
ⓘ North Mesa Mine Group	[Halotrichite] EDS analyzed by Joy Desor. +1 other reference
ⓘ North Mesa 10 Mine	[Halotrichite] Collected by and in the collection of ...
ⓘ North Mesa Mine	[Halotrichite] Collected by and in the collection of ...
ⓘ North Mesa 5 Adit	[Pickeringite] Tony Kampf Identification
Piute County Marysvale Mining District ⓘ Freedom No. 2 Mine	[Halotrichite] Excalibur Mineral Co. microprobe ... +1 other reference
Salt Lake County ⓘ Alum Point	[Pickeringite, Pickeringite var: Manganese-bearing Pickeringite] Bullock (1981)
San Juan County Fry Canyon Mining District ⓘ Fry No. 4 Mine	[Pickeringite] Bullock (1981)
Red Canyon Mining District ⓘ Blue Lizard Mine	[Halotrichite, Pickeringite] Plášil et al. (2013)
ⓘ Chocolate Drop	[Pickeringite] SEM/EDS confirmed.
ⓘ Giveway-Simplot Mine	[Halotrichite] Travis Olds collection
ⓘ Joe Bishop Mine	[Halotrichite] Patrick Haynes. IDs by the late Howard ...
ⓘ Markey Mine	[Halotrichite]
ⓘ Posey Mine	[Halotrichite] Min News 5:10 p1-5 +1 other reference
White Canyon Mining District Fry Mesa ⓘ Widowmaker Mine	[Pickeringite] Collected and analyzed by Joy Desor.
ⓘ Happy Jack Mine (Blue Dike Mine)	[Halotrichite] USGS: Geological Survey Circular 217
Uracop - Sunrise (Scenic Group; B and I) ⓘ Scenic No. 4	[Pickeringite] USGS: Geological Survey Circular 217
Uintah County ⓘ Uteland Knoll Mining District (Ouray Mining District)	[Halotrichite] Bullock (1981)
ⓘ Ouray	[Halotrichite] Contributions to Economic Geology
Utah County East Tintic Mining District Dividend Tintic Standard Mine ⓘ Tintic Standard No. 2 Shaft	[Halotrichite] Bullock (1981)
Vermont Orange County Strafford South Strafford ⓘ Elizabeth Mine	[Halotrichite, Pickeringite] ... +1 other reference
Windham County Westminster ⓘ Quarry Road quarry	[Halotrichite] Robinson (1996)
Virginia Buckingham County Gold-Pyrite Belt ⓘ Bremo Bluff	[Pickeringite] Dietrich (1990)
Carroll County Southern Section-Blue Ridge Province ⓘ Gossan Lead Mining District	[Halotrichite, Pickeringite] Dietrich (1990)
Fries ⓘ Iron Ridge Mine (Bumbarger Pit; Great Outburst Mine; Huey Pit; Monarat Mine)	[Pickeringite] Dietrich (1990)
Floyd County ⓘ Alum phyllite	[Pickeringite] Dietrich (1990)
ⓘ Floyd	[Pickeringite] Dietrich (1990)
Fredericksburg ⓘ Hazel Run	[Pickeringite] Dietrich (1990)
Grayson County ⓘ US Highway 58 roadcut	[Pickeringite] Dietrich (1990)
Louisa County Gold-Pyrite Belt Mineral ⓘ Arminius Mine	[Pickeringite] Dietrich (1990)
ⓘ Sulphur Mine (Crenshaw Mine; Victoria Furnace Mine)	[Halotrichite, Pickeringite] Dietrich (1990)
Wise County Big Stone Gap ⓘ Roadcut	[Halotrichite] Dietrich (1990)
ⓘ Roadcut (2)	[Halotrichite] Dietrich (1990)
ⓘ Unnamed coal mines	[Halotrichite] Dietrich (1990)
Washington Chelan County Railroad Creek Mining District ⓘ Holden Mine	[Halotrichite, Pickeringite] Kilburn et al. (1996)
Wisconsin Rusk County Ladysmith ⓘ Flambeau Mine	[Halotrichite] wgnhs.uwex.edu (n.d.)
Uzbekistan
Ferghana Region Uzbekistan District ⓘ Shorsu deposit (Shor-Su deposit)	[Halotrichite, Pickeringite] Uklonskiy et al. (1964) +2 other references