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Strengite-Variscite Series

A solid-solution series between two end-member minerals
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About Strengite-Variscite SeriesHide

Crystal System:
Orthorhombic
Series Formula:
FePO4 · 2H2O to AlPO4 · 2H2O
A series between Strengite and Variscite

A complete substitutional series involving Fe3+ and Al.


Unique IdentifiersHide

Mindat ID:
8631
Long-form identifier:
mindat:1:1:8631:4

Crystallography of Strengite-Variscite SeriesHide

Crystal System:
Orthorhombic

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0012324StrengiteTaxer K, Bartl H (2004) On the dimorphy between the variscite and clinovariscite group: refined finestructural relationship of strengite and clinostrengite, Fe(PO4)*2H2O Crystal Research and Technology 39 1080-10882004Kreuzberg, Pleystein, Barvaria0293
0009582VarisciteKniep R, Mootz D, Vegas A (1977) Variscite Acta Crystallographica B33 263-2651977Montgomery County, Arkansas, USA0293
CIF Raw Data - click here to close

Synonyms of Strengite-Variscite SeriesHide

Common AssociatesHide

Associations Based on Photo Data:
2 photos of Strengite-Variscite Series associated with FluelliteAl2(PO4)F2(OH) · 7H2O
1 photo of Strengite-Variscite Series associated with BariopharmacosideriteBa0.5Fe3+4(AsO4)3(OH)4 · 5H2O

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Strengite-Variscite SeriesHide

References for Strengite-Variscite SeriesHide

Localities for Strengite-Variscite SeriesHide

Showing 741 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.
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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.
Antigua and Barbuda
 
[Variscite, Variscite var: Ferrian Variscite] Palache et al. (1951)
Argentina
 
  • Córdoba Province
    • Cruz del Eje department
      • Candelaria District
[Strengite] Kampf et al. (2010)
    • Punilla Department
      • San Roque District
        • Tanti
[Strengite] Dina (1993)
[Strengite, Variscite] Demartin et al. (1997)
    • San Alberto Department
      • Tránsito District
        • Pampa de Achala
[Strengite] Gay et al. (1991)
  • Jujuy Province
    • Humahuaca Department
      • El Aguilar
[Variscite] Brodtkorb (2002)
  • San Luis Province
    • Coronel Pringles Department
      • Totoral pegmatitic field
[Strengite] OYARZABAL et al. (H2O)
Australia
 
[Strengite, Variscite] Trueman (1965)
  • New South Wales
    • Rous Co.
      • Chillingham
[Variscite] Rocks & Min.:64 (5)
    • Westmoreland County
[Variscite] Podgson RE
    • Yancowinna Co.
      • Broken Hill district
        • Broken Hill
[Strengite] Birch et al. (1997)
          • Broken Hill South Mine (BHS Mine; South Mine)
[Strengite, Variscite] Birch et al. (1997)
[Strengite] Day (1998)
      • Thackaringa District
[Strengite] Rod Martin Collection inferred from ...
  • Northern Territory
    • Barkly Region
      • Sandover
        • Ammaroo Station (Amaroo Station)
[Variscite] Hosking (1995)
[Variscite]
  • Queensland
    • City of Mount Isa
      • Gunpowder District
        • Mount Gordon
[Variscite] Day et al. (1996)
    • Cloncurry Shire
      • Cloncurry
[Variscite] Anon. (2001)
    • Logan City Shire
[Variscite] Murray (1973)
    • Moreton Bay Region
[Variscite] Dion Glastra M. collection
    • North Burnett Region
[Variscite] Duggan et al. (1990)
[Variscite] Duggan et al. (1990)
  • South Australia
    • Barossa Council
      • Penrice
[Strengite, Variscite]
    • Eyre peninsula
      • Middleback Range
        • Iron Duke Complex
[Strengite, Variscite] Francis (2010)
[Strengite] Francis (2010)
    • Light Regional Council
      • Koonunga
[Strengite, Variscite] Frost et al. (2004)
      • St Johns
[Variscite] Australian Journal of Mineralogy ...
    • Pastoral Unincorporated Area
      • Bimbowrie Conservation Park
[Strengite] - (1997, December)
      • Boolcoomatta Reserve (Boolcoomata Station)
[Strengite] Elliott et al. (2023)
      • Iron Knob
[Strengite, Variscite, Variscite var: Ferrian Variscite] Pilkington et al. (1979)
      • Outalpa
[Variscite] Hosking (1995)
[Strengite] - (1997, December)
[Strengite]
    • Robertstown
[Variscite] Francis et al. (2012)
  • Tasmania
    • Huon Valley municipality
      • Southern Islands
[Strengite, Variscite] Bottrill et al. (2008)
    • Meander Valley municipality
      • Dunorlan
[Variscite] Bottrill et al. (2008)
    • Northern Midlands municipality
      • Avoca-Royal George mining district
[Strengite] Bottrill & Baker
    • West Coast municipality
      • Queenstown district
        • Queenstown
[Variscite] Ralph Bottrill et al in prep.
[Variscite] Bottrill et al. (2008)
  • Victoria
    • East Gippsland Shire
      • Glen Valley
[Strengite] Birch (2018)
[Strengite] Eagle et al. (2015) +1 other reference
[Strengite] Eagle et al. (2015)
    • Mansfield Shire
      • Mansfield
[Strengite, Variscite] Birch et al. (1993)
    • Rural City of Wangaratta
      • Greta South
[Variscite] Birch et al. (1993)
[Strengite, Variscite]
      • Whitfield
[Variscite] Birch et al. (1993)
    • South Gippsland Shire
      • Hoddle Range
        • Fish Creek
[Strengite, Variscite] Day (1996)
    • Southern Grampians Shire
      • Dunkeld
[Variscite]
    • Swan Hill Rural City
      • Lake Boga
[Strengite, Variscite]
  • Western Australia
    • East Pilbara Shire
      • Rudall River District
[Variscite] Downes et al. (2002)
[Variscite] Downes et al. (2006)
    • Meekatharra Shire
[Variscite] Simpson Mineral Collection of the ...
      • Milgun Station
[Variscite] Fetherston et al. (2013)
[Variscite] Peter Downes et al. (2018)
[Variscite] Mineralogical Magazine 39 (1974) +1 other reference
[Variscite] Fetherston et al. (2013)
      • Mount Padbury Station
[Variscite] Fetherston et al. (2013)
[Variscite] Simpson Mineral Collection of the ...
      • Mount Vernon Station
[Variscite] Government Chemical Laboratories. In: ... +1 other reference
      • Woodlands Station
[Strengite, Variscite] Nickel (2008)
    • Perenjori Shire
      • Weelhamby Lake
[Variscite, Variscite var: Ferrian Variscite] Palache et al. (1951)
[Variscite] Simpson (1932) +1 other reference
    • Port Hedland Shire
      • Abydos Station
        • Wodgina
[Strengite] Jacobson et al. (2007)
Austria
 
  • Lower Austria
    • Krems-Land District
      • Mühldorf
        • Amstall
[Variscite] Niedermayr (1996)
[Variscite] Niedermayr (1984) +1 other reference
  • Styria
    • Bruck-Mürzzuschlag District
      • Krieglach
        • Freßnitzgraben
          • Alpl
[Strengite] C.Auer (2015)
      • Langenwang
[Strengite] Bernhard (2010)
      • Pernegg an der Mur
[Variscite] Palache et al. (1951)
    • Leoben District
      • Sankt Peter-Freienstein
[Variscite] Palache et al. (1951) +1 other reference
    • Voitsberg District
      • Edelschrott
        • Modriach
          • Herzogberg
[Strengite] Aufschluss 1972 (SB)
      • Krottendorf-Gaisfeld
[Strengite, Variscite] Postl W et al. (2022)
Belgium
 
  • Wallonia
    • Hainaut
      • Bernissart
        • Blaton
[Strengite, Variscite] Van Tassel (1966) +7 other references
    • Liège
      • Lierneux
        • Arbrefontaine
[Variscite] Hatert et al. (2002)
      • Visé
[Strengite] Jockin (en collaboration avec l'université de Liège) +4 other references
    • Luxembourg
      • Vielsalm
[Variscite] Fransolet (1987) +2 other references
[Variscite] Hatert et al. (2002)
        • Cahay
[Strengite] José Dehove collection.
Bolivia
 
  • Oruro
    • Pantaleón Dalence Province
      • Huanuni
[Variscite] Wilson (2001) +1 other reference
  • Potosí
    • Rafael Bustillo Province
      • Llallagua
[Variscite] Wilson (2001)
    • Sud Chichas Province
      • Atocha Municipality
        • Cerro Chorolque
[Strengite, Variscite] Salomon Rivas y Federico Ahlfeld (1998)
Botswana
 
  • North-West District
    • Ghanzi-Chobe Belt
      • Khoemacau Mining Cu-Ag deposits
[Variscite] Kelepile (2017)
Brazil
 
  • Bahia
[Variscite] Sauer (1982)
[Variscite] Rui Nunes December 2010
  • Maranhão
    • Godofredo Viana
      • Aurizona
        • Aurizona Mine
[Variscite] Sioeira et al. (1982)
[Strengite] Queiroz (2016)
  • Mato Grosso
[Variscite] Haas (n.d.)
  • Minas Gerais
    • Brumadinho
      • Serra Azul
[Variscite] Menezes (n.d.)
    • Conselheiro Pena
      • Barra do Cuieté
[Strengite, Variscite, Variscite var: Ferrian Variscite] Bermanec et al. (2011)
[Strengite] sergio varvello
[Strengite] Krister collection
[Strengite, Variscite] Sergio Varvello collection +1 other reference
[Strengite] King et al. (1993)
    • Divino das Laranjeiras
      • Linópolis
[Strengite] Jhonatan Gomes minerals collection
[Strengite] fabreminerals specimen
[Strengite] A. M. I. Martins collection
    • Galiléia
      • Sapucaia do Norte
[Strengite] Atencio et al. (2004)
[Strengite, Variscite] Cassedanne et al. (1999) +1 other reference
[Variscite]
    • Itinga
      • Jenipapo pegmatite field
[Strengite] Sergio Varvello collection
[Variscite] Robinson (1993)
  • Pará
    • Canaã dos Carajás
      • Serra Sul complex
        • S11D deposit
[Strengite] Piló et al. (2023)
[Strengite] Piló et al. (2023)
    • Monte Alegre
      • Maicuru range
[Variscite] 531 p +6 other references
    • Oriximiná
      • Acaraí range
[Strengite] Premoli et al. (1981)
    • Parauapebas
      • Carajás iron complex
        • N4WS Pit
[Strengite, Variscite] Piló et al. (2023)
[Strengite] Figueira et al. (2019)
    • Viseu
[Variscite] Santos et al. (2016)
  • Paraíba
    • Pedra Lavrada
[Variscite] Murdoch (1955)
  • Tocantins
[Strengite] Coelho et al. (2025)
Bulgaria
 
  • Haskovo Province
    • Mineralni Bani Municipality
      • Spahievo
        • Spahievo ore field
[Variscite] Kunov et al. (2001) +1 other reference
  • Kardzhali Province
    • Momchilgrad Municipality
      • Obichnik
[Strengite, Variscite] Kunov et al. (1997)
Cameroon
 
  • Adamawa Region
    • Vina
      • Martap
[Strengite] F. Pillard : "Contribution à l'étude de l'altération de la vivianite : cas de la vivianite d'Anloua (Cameroun)
Canada
 
  • Northwest Territories
    • Fort Norman
[Variscite] Can Min vol 25 pp 221-226 (1987)
  • Yukon
    • Dawson mining district
[Strengite] Robinson et al. (1992)
[Strengite] Robinson et al. (1992)
    • Watson Lake mining district
      • Itsy Mountains
[Variscite] Maggie Wilson
Cape Verde
 
  • Barlavento Islands
[Variscite] Figueiredo +3 other references
Chile
 
  • Antofagasta
    • Antofagasta Province
      • Mejillones
        • Mejillones peninsula
[Variscite] XRD and SEM-EDS by Igor V. Pekov
[Strengite] identified by Gerhard Möhn
      • Sierra Gorda
        • Lomas Bayas mining district
[Strengite] Kampf et al. (2012)
    • El Loa Province
      • San Pedro de Atacama
[Strengite, Variscite] Raman spectroscopy and EDX by Günter ...
  • Atacama
    • Copiapó Province
      • Tierra Amarilla
[Strengite] SEM-EDS by Joy Desor and Gerhard Möhn
  • Tarapacá
    • Tamarugal Province
      • Pica
        • Collahuasi mining district
[Strengite] Teck Resources Limited
China
 
  • Fujian
    • Nanping
      • Yanping District
[Variscite] Zhaolin Li et al. (1983)
  • Guangxi
[Variscite] Xunyi Wang (1982)
  • Guizhou
    • Bijie
      • Zhijin County
[Variscite] Orris et al. (2002)
  • Hunan
    • Chenzhou
      • Suxian District
[Variscite] Anthony +1 other reference
[Variscite] Hunan 230 Laboratory et al. (1976)
  • Jiangxi
    • Fuzhou
      • Chongren Co.
[Variscite] Rengui Wu and Dagan Yu (2000)
      • Le'an Co.
        • Zoujiashan ore district
[Variscite] Rengui Wu and Dagan Yu (2000)
    • Ji'an
      • Suichuan Co.
[Variscite] Yunhuai Lin and Shiyang Chen (1985)
    • Shangrao
      • Dexing Co.
        • Yinshan ore field
[Variscite] Mangen Li et al. (2007)
      • Yanshan Co. (Qianshan Co.)
[Variscite] Rengui Wu and Dagan Yu (2000)
  • Xinjiang
    • Bayin'gholin Autonomous Prefecture
      • Lopnur Co. (Yuli Co.; Weili Co.)
[Variscite] Keqiao Chen et al. (1981)
    • Ili Kazakh Autonomous Prefecture
      • Altay Prefecture (Aletai Prefecture)
        • Qinghe Co. (Qinggil Co.; Chinggil Co.)
[Variscite] Denghong Wang et al. (2001)
Colombia
 
  • San Andrés y Providencia Department
[Strengite, Variscite, Variscite var: Ferrian Variscite] McConnell (1943)
Czech Republic
 
  • Central Bohemian Region
    • Benešov District
      • Votice (Wotitz)
[Variscite] Vrtiška et al. (2016) +1 other reference
    • Beroun District
      • Cerhovice (Cerkovitz?)
[Strengite, Variscite] Pauliš +4 other references
      • Hudlice
[Strengite, Variscite] Vrtiška L. et al. (2018)
      • Olešná
[Strengite, Variscite] Černý P. et al. (2015) +1 other reference
[Variscite] Zepharovich (1867)
        • Svatá Dobrotivá (St Benigna)
[Strengite] Duda
    • Kutná Hora District
      • Vlkaneč
[Strengite] Povondra et al. (eds.) +1 other reference
    • Příbram District
      • Počepice
[Variscite] Vrtiška et al. (2016) +1 other reference
    • Rakovník District
      • Roztoky
[Strengite] Černý P (1)
  • Karlovy Vary Region
    • Sokolov District
      • Krásno
[Strengite] Sejkora et al. (2006)
[Strengite] Sejkora et al. (2006)
        • Vysoký Kámen
[Strengite, Variscite] Sejkora et al. (2006) +1 other reference
  • Liberec Region
    • Semily District
[Variscite] Pauliš +1 other reference
  • Plzeň Region
    • Domažlice District
[Strengite] Weber
    • Rokycany District
      • Těškov
[Strengite, Variscite] Janouš (1995) +4 other references
  • South Bohemian Region
    • České Budějovice District
      • Horní Stropnice
[Strengite] Welser
    • Písek District
      • Čížová
[Variscite] Sejkora et al. (2011)
  • Ústí nad Labem Region
    • Chomutov District
      • Vejprty
[Strengite] Pauliš et al. (2020)
  • Vysočina Region
    • Jihlava District
      • Kamenice
        • Řehořov
[Strengite, Variscite] Houzar (1998)
    • Pelhřimov District
      • Křeč
[Strengite, Variscite] Vrtiška et al. (2017)
    • Třebíč District
      • Předín
[Variscite] Gramblička (n.d.)
      • Stařeč
[Variscite] Gramblička (n.d.)
      • Želetava
        • Bítovánky
[Variscite] Gramblička (n.d.)
    • Žďár nad Sázavou District
      • Bory
        • Horní Bory
          • Cyrilov (Cyrillhof)
[Strengite] new data on the type material. Journal of GEOsciences: 45 (1-2) +3 other references
DR Congo
 
  • Haut-Katanga
    • Kambove Territory
      • Shinkolobwe
[Variscite] Gauthier et al. (1989)
  • Haut-Uélé
[Strengite, Variscite] Mbo et al. (2023)
  • Lualaba
    • Dilolo
      • Kisenge-Kamata deposit (Kisenge mining area)
[Strengite, Variscite] De Putter et al. (2018)
  • North Kivu
    • Rutshuru Territory
      • Bwito
[Variscite] Nasraoui et al. (1999)
  • South Kivu
    • Mwenga Territory
[Variscite] Mills et al. (2010)
Europe
 
[Strengite, Variscite] Berbain et al. (2012)
Finland
 
  • Pirkanmaa
    • Orivesi
      • Eräjärvi area
[Strengite] Sandström et al. (2009)
  • South Ostrobothnia
[Strengite] Ilkka Mikkola collection
France
 
  • Auvergne-Rhône-Alpes
    • Allier
      • Vichy
        • Échassières
[Strengite, Variscite] Queneau (n.d.)
          • Montmins mining district
[Strengite, Variscite] Chollet Pascal Collection
            • Le Mazet
[Strengite, Variscite] Pierre Le Roch & Jean-Marc Johannet ... +1 other reference
[Strengite, Variscite] Cuchet et al. (2000)
    • Puy-de-Dôme
      • Thiers
        • Lachaux
[Strengite] Queneau (n.d.)
  • Brittany
    • Morbihan
      • Pontivy
        • Plumelin
[Strengite] Le Roc'h P. ()
  • French Guiana
[Strengite, Strengite var: Aluminium-bearing Strengite] Palache et al. (1951)
[Strengite, Variscite] de la Paix Izerumugaba et al. (2026)
  • Martinique
    • Arrondissement of Le Marin
      • Le Diamant
[Variscite] Lacroix (1910)
    • Arrondissement of Saint-Pierre
      • Le Prêcheur
[Variscite, Variscite var: Ferrian Variscite] Palache et al. (1951)
  • Nouvelle-Aquitaine
    • Creuse
      • Aubusson
        • Soumans
          • Montebras
[Strengite, Variscite]
    • Haute-Vienne
      • Bellac
        • Bessines-sur-Gartempe
[Strengite] perso.wanadoo.fr (2004)
        • Compreignac
[Strengite] perso.wanadoo.fr (2005)
        • Razès
          • Chanteloube
            • Vilatte Quarries (La Vilate)
[Strengite] perso.wanadoo.fr (2004)
[Strengite] Boisson (1988) +1 other reference
[Strengite] perso.wanadoo.fr (2004)
    • Pyrénées-Atlantiques
      • Bayonne
        • Arbouet-Sussaute
[Strengite] Pascale & Daniel Journet
  • Occitanie
    • Aveyron
      • Villefranche-de-Rouergue
        • La Capelle-Bleys
[Strengite] Gineste et al. (2026)
        • Prévinquières
[Variscite] Jean-Marie LAURENT collection
    • Hérault
      • Béziers
        • Saint-Vincent-d'Olargues
[Strengite] Audra et al. (2019)
    • Pyrénées-Orientales
      • Céret
        • Collioure
[Strengite, Variscite] Berbain et al. (2012)
    • Tarn
      • Castres
        • Fontrieu
          • Fumade
[Strengite, Variscite] Queneau (n.d.)
  • Pays de la Loire
    • Loire-Atlantique
      • Châteaubriant-Ancenis
        • Pannecé
[Variscite] Lukas (1978) +2 other references
Georgia
 
  • Abkhazia
    • Gudauta District
      • New Athos (Novyi Afon; Akhali Atoni)
[Strengite] Chervyatsova et al. (2024)
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Ortenaukreis
        • Oberwolfach
[Strengite] Walenta (1992)
  • Bavaria
    • Lower Bavaria
      • Regen District
        • Zwiesel
          • Rabenstein
[Strengite] Weiß (1990) +1 other reference
    • Upper Franconia
      • Bayreuth District
        • Mehlmeisel
[Variscite] 58. +1 other reference
    • Upper Palatinate
      • Amberg-Sulzbach District
        • Auerbach in der Oberpfalz
[Strengite] Geipel (1982) +1 other reference
          • Nitzlbuch (Nitzelbuch)
[Strengite, Variscite] Weiß (1990)
      • Cham District
        • Waldmünchen
          • Althütte
[Strengite] Weiß (1990)
      • Neustadt an der Waldnaab District
        • Pleystein
[Strengite] Palache et al. (1951) +1 other reference
[Strengite, Variscite] Dill et al. (2012)
[Strengite] Dill et al. (2008) +1 other reference
        • Waidhaus
[Strengite, Variscite] Dill et al. (2010) +3 other references
[Strengite] Weiß (1990)
[Strengite, Variscite] web.archive.org (2001)
          • Reinhardsrieth
[Strengite] Dill et al. (2015)
[Strengite, Variscite] Wittern (2001) +1 other reference
      • Tirschenreuth District
        • Erbendorf
          • Grötschenreuth
[Strengite] Pöllmann et al. (2005)
        • Plößberg
[Strengite]
[Strengite] DILL et al. (2009)
        • Tirschenreuth
[Variscite] Meier (2005)
  • Hesse
    • Darmstadt
      • Bergstraße
        • Heppenheim
          • Kirschhausen
[Strengite, Variscite] Wittern (2001)
      • Main-Taunus-Kreis
        • Eppstein
          • Bremthal
[Strengite] www.mineralienatlas.de (n.d.)
[Strengite] Dana 6:823.
    • Giessen Region
      • Giessen
        • Biebertal
          • Fellingshausen
[Strengite] Palache et al. (1951) +2 other references
          • Königsberg
[Strengite, Variscite] Weiß (1990)
      • Lahn-Dill-Kreis
        • Braunfels
[Strengite] in the collection of Christof Schäfer
        • Lahnau
          • Waldgirmes
[Strengite, Variscite] Dana 6: 797 +1 other reference
      • Limburg-Weilburg
        • Weilmünster
          • Essershausen
[Strengite] Müller et al. (2012)
        • Weinbach
[Strengite, Variscite] Blaß (2002)
  • North Rhine-Westphalia
    • Arnsberg
      • Hochsauerlandkreis
        • Arnsberg
          • Uentrop
[Strengite] Weiß (1990)
        • Bestwig
[Strengite, Variscite] Blaß et al. (1998) +1 other reference
        • Sundern
          • Altenhellefeld
[Variscite] Wittern (2001)
          • Hellefeld
[Strengite, Variscite] Wittern (2001)
[Variscite] Weiß (1990)
      • Siegen-Wittgenstein
        • Siegen
          • Alt-Siegen
            • Achenbach
[Strengite] Legner et al. (2011)
      • Soest
        • Warstein
[Strengite, Variscite] Stieglitz et al. (1987) +1 other reference
    • Düsseldorf
      • Wuppertal
        • Aprath castle
[Strengite] Emser Hefte 1988 (4)
  • Rhineland-Palatinate
    • Rhein-Lahn-Kreis
      • Aar-Einrich
        • Mudershausen
[Strengite, Variscite] www.mineralienatlas.de (2016)
    • Westerwaldkreis
      • Wirges
        • Dernbach
[Variscite] in the collection of Christof Schäfer
  • Saxony-Anhalt
    • Harz
      • Oberharz am Brocken
        • Trautenstein
[Strengite] Gröbner et al. (2011)
    • Mansfeld-Südharz
      • Südharz
        • Stolberg
          • Großer Auerberg
[Strengite, Variscite] Gröbner et al. (2011)
  • Saxony
    • Erzgebirgskreis
      • Ehrenfriedersdorf
[Variscite] Wittern (2001)
    • Görlitz District
      • Kodersdorf
        • Rengersdorf
[Strengite] Witzke et al. (1997)
      • Neißeaue
[Variscite] Witzke et al. (2013)
      • Quitzdorf am See
        • Horscha
[Variscite] 86. +2 other references
    • Mittelsachsen
      • Frankenberg
        • Langenstriegis
[Variscite] Palache et al. (1951)
[Variscite] Wittern (2001)
    • Vogtlandkreis
      • Heinsdorfergrund
        • Hauptmannsgrün
[Strengite] Pestel et al. (2012)
      • Plauen
        • Meßbach
[Variscite] Journ.prakt.Chem. (1837) +2 other references
      • Tirpersdorf
[Variscite] Kasiske et al. (2003)
  • Thuringia
    • Greiz District
      • Kauern
[Variscite] Witzke et al. (1998)
      • Ronneburg
[Variscite] Witzke et al. (1998)
[Variscite] Witzke et al. (1998)
      • Zeulenroda-Triebes
[Variscite] Pestel et al. (2007)
    • Nordhausen District
      • Harztor
        • Herrmannsacker
          • Lange Tal
            • Neustadt dam
[Strengite] Gröbner et al. (2011)
    • Saale-Orla District
      • Hirschberg
        • Ullersreuth
[Strengite] Witzke et al. (2001)
[Strengite] Witzke et al. (2001)
Ghana
 
  • Oti Region
[Variscite] Addae et al. (2026)
Hungary
 
  • Borsod-Abaúj-Zemplén County
    • Miskolc District
      • Bükkszentkereszt
[Strengite] collector: Regina Körmendy
  • Heves County
    • Parádfürdő
[Variscite] Szakáll: 100 Hungarian Mineral Loc.
Iceland
 
  • Northeastern Region
    • Þingeyjarsveit
      • Skútustaðahreppur
        • Myvatn
[Variscite] Carson III (2015)
Iran
 
  • West Azerbaijan Province
    • Takab County
[Strengite] Daliran (2008)
  • Yazd Province
    • Bafq County
[Variscite] Yaghubpur et al. (1997)
Ireland
 
  • Munster
    • Cork County
      • Tracton
        • Minane Bridge
[Variscite]
Israel
 
  • Haifa District
    • Hadera
      • Hof HaCarmel
[Variscite] Weiner et al. (1993)
  • Southern District
    • Beersheba Subdistrict
      • Ramat Negev Regional Council
[Strengite] Shahar et al. (1989)
Italy
 
  • Apulia
    • Metropolitan City of Bari
      • Castellana Grotte
[Strengite] Balenzano et al. (1974)
  • Liguria
    • Savona Province
      • Bergeggi
[Strengite] collected by F. Castellaro and probed ...
      • Vado Ligure
[Strengite] Marco Ciriotti 2010
[Strengite] Gianluca Armellino et al. (2024) +1 other reference
  • Sardinia
    • Metropolitan City of Cagliari
      • Sarroch
[Variscite] Stara et al. (1996)
[Strengite] Orlandi et al. (2013) +1 other reference
      • Sinnai
[Variscite] Marini et al. (1989) +1 other reference
    • South Sardinia Province
      • Carbonia
        • Barbusi
[Strengite] Baldoni et al. (2013) +2 other references
      • Gonnosfanadiga
        • Fenugu Sibiri Mine
[Strengite] Brizzi et al. (1994)
      • San Vito
[Variscite] Marini et al. (1989) +1 other reference
      • Villaputzu
[Variscite] Pelloux (1912) +5 other references
  • Sicily
    • Syracuse Province
      • Melilli
[Variscite] Audra et al. (2019)
    • Trapani Province
      • Castellammare del Golfo
[Variscite] Audra et al. (2019)
  • Tuscany
    • Lucca Province
      • Pietrasanta
        • Valdicastello Carducci
[Strengite, Variscite] Senesi (2000)
Japan
 
  • Hokkaidō Prefecture
    • Okhotsk Subprefecture
      • Monbetsu City
[Variscite] Ito (1975)
  • Ibaraki Prefecture
    • Kasumigaura City
      • Chiyoda-machi
[Strengite] pers. comm. Kotaro Watanabe
  • Kyoto Prefecture
    • Soraku District
      • Wazuka-cho
[Strengite] MORIMITSU et al. (2021)
  • Nagano Prefecture
    • Chino City
[Strengite] - (n.d.) +1 other reference
  • Shizuoka Prefecture
    • Shimoda City
      • Rendaiji
[Variscite] Takashi Yamada et al. (1999)
  • Tochigi Prefecture
    • Nikko City
      • Imaichi
[Variscite] Yamada (2004)
  • Yamaguchi Prefecture
    • Abu District
      • Abu town
[Variscite] Matsubara et al. (1998)
Kazakhstan
 
  • Jambyl Region
    • Talas Alatau Range (Talas Ala-Too Range)
[Variscite] Ankinovich et al. (1997)
Kyrgyzstan
 
  • Batken Region
    • Kadamjay District
[Variscite] Karpenko et al. (2009)
Liberia
 
  • Bomi County
[Strengite] Axelrod et al. (1952)
  • Gbarpolu County
    • Bopolu
[Strengite, Variscite] a reconnaissance report. USGS Bulletin ... +2 other references
Madagascar
 
  • Amoron'i Mania
    • Ambatofinandrahana District
      • Mandrosonoro
[Strengite] Behier (1963)
Malaysia
 
  • Johor
    • Batu Pahat District
[Strengite] - (n.d.)
[Variscite] Matthew Low collection
  • Kelantan
    • Gua Musang District
[Variscite] Matthew Low collection
  • Sarawak
    • Miri Division
      • Mulu
[Variscite] McFarlane et al. (2018)
[Strengite, Variscite] Bridge et al. (1983)
  • Selangor
    • Gombak District
[Variscite] Wurster et al. (2015)
Mali
 
  • Sikasso Region
    • Kadiolo Cercle
[Strengite, Variscite] Cedrick Gineste
Mexico
 
  • Coahuila
    • Cuatro Ciénegas Municipality
      • Cuatro Ciénegas
        • Limestone caves
[Variscite] Forti (2006)
  • Durango
    • Indé Municipality
[Strengite] Michael Shannon specimens
  • Queretaro
    • Tolimán Municipality
      • Soyatal
[Variscite] Panczner (1987)
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Amerzgane Cercle
        • Ouisselsate Caïdat
[Strengite] Walenta (1981)
  • Marrakesh-Safi Region
    • Rehamna Province
      • Sidi Bou Othmane Cercle
        • Jebilet Mountain (Djebilet Mountain)
          • Sidi Bou Othmane
[Variscite] Georges FAVREAU collection & EDX ...
  • Oriental Region
    • Berkane Province
      • Zegzel commune
[Strengite, Variscite] Audra et al. (2021)
Mozambique
 
  • Zambezia Province
[Variscite] Wilson et al. (2000)
    • Gilé District
[Variscite] Neves et al. (1968)
Namibia
 
  • Erongo Region
    • Dâures Constituency
[Strengite, Variscite] von Bezing (2007)
[Strengite, Variscite] Keller (1985)
Pacific Ocean
 
  • Clarion-Clipperton zone
[Variscite, Variscite var: Ferrian Variscite] Palache et al. (1951)
Peru
 
  • Junín
[Variscite] Hyrśl (2012)
Philippines
 
  • Visayas
    • Western Visayas Region
      • Palawan Province
        • Palawan Island
          • Bataraza
[Variscite] Wurster et al. (2015)
          • El Nido
[Variscite] Wurster et al. (2015)
          • Quezon
[Variscite] Choa et al. (2014)
Poland
 
  • Lower Silesian Voivodeship
    • Ząbkowice Śląskie County
      • Gmina Ząbkowice Śląskie
        • Brodziszów
[Variscite] Eligiusz Szełęg collection
  • Świętokrzyskie Voivodeship
    • Kielce County
[Variscite] Personally collected by Zając Piotr in ...
[Variscite] Gucwa +3 other references
Portugal
 
  • Beja
    • Almodôvar
      • Almodôvar e Graça dos Padrões
[Variscite] Oliveira et al. (2025)
  • Braga
    • Braga
      • Mire de Tibães
[Strengite] Nunes (n.d.)
  • Bragança
    • Torre de Moncorvo
      • Carviçais
[Strengite]
      • Felgar e Souto da Velha
[Strengite, Variscite] various correctly added photos
[Strengite] Alves (n.d.)
[Strengite, Variscite] Alves (n.d.)
    • Vinhais
[Variscite] António Manuel Ináçio Martins ...
      • Rebordelo
[Variscite] Alves (n.d.)
  • Castelo Branco
    • Idanha-a-Nova
      • União de Freguesias de Monsanto e Idanha-a-Velha
[Strengite] Neiva et al. (2001)
[Strengite] Pedro Alves collection and/or ...
  • Coimbra
    • Góis
      • Cadafaz e Colmeal
[Strengite] Analyzed SEM-EDS by Pedro Alves
  • Évora
    • Vila Viçosa
      • Nossa Senhora da Conceição e São Bartolomeu
[Strengite, Strengite var: Aluminium-bearing Strengite]
  • Guarda
    • Gouveia
      • Folgosinho
[Strengite] Alves (n.d.)
    • Guarda
      • Vela
[Strengite] Alves (n.d.)
    • Sabugal
      • Bendada
[Strengite] Schnorrer-Köhler et al. (1991)
[Strengite] Alves (n.d.)
  • Viana do Castelo
    • Caminha
      • Arga de Baixo
[Strengite]
    • Ponte da Barca
      • Touvedo (São Lourenço e Salvador)
[Strengite, Variscite] Self-collected by Pedro Alves.
      • Vila Chã (São João Baptista e Santiago)
[Variscite] PROSPEG – Projecto de prospecção +1 other reference
    • Ponte de Lima
      • Cabração e Moreira do Lima
[Strengite] Alves (n.d.)
        • Moreira do Lima
[Strengite, Variscite]
    • Viana do Castelo
      • Montaria
[Variscite] Dias P et al. (2014)
    • Vila Nova de Cerveira
      • Covas
[Strengite] Alves (n.d.)
  • Viseu
    • Mangualde
      • Mangualde (Mesquitela e Cunha Alta)
[Strengite] Palache et al. (1951)
[Strengite] Pedro Alves collection (p-XRD and SEM EDS analysed samples) +1 other reference
[Strengite] Mineralien Atlas
      • Quintela de Azurara
[Variscite]
    • São João da Pesqueira
[Strengite] Neiva et al. (2001)
    • São Pedro do Sul
      • Manhouce
[Strengite] Alves (n.d.)
    • Sátão
      • Ferreira de Aves
        • Aldeia Nova
[Strengite] Rui Nunes 2010
    • Vila Nova de Paiva
[Strengite] Identified in Rebentão Mine
      • Queiriga
        • Lagares do Estanho Mines
[Strengite] self-find
Romania
 
  • Hunedoara County
    • Boșorod
[Variscite] Onac et al. (2005)
    • Domogled - Cernei Valley National Park
[Variscite] Onac (2009)
  • Maramureș County
    • Târgu Lăpuș
[Strengite] minerals-of-the-carpathians.eu (2008) +1 other reference
  • Suceava County
    • Iacobeni
[Variscite] minerals-of-the-carpathians.eu (2008)
Russia
 
  • Chelyabinsk Oblast
    • Plastovsky District
      • Svetlyi
[Variscite, Variscite var: Ferrian Variscite] Pavel M. Kartashov (n.d.) +1 other reference
  • Kamchatka Krai
    • Ust-Bolsheretsky District
[Strengite, Variscite] Rychagov et al. (2017, November)
  • Murmansk Oblast
    • Kovdorsky District
[Strengite] Ivanyuk et al. (2018)
  • Sakha
    • Indigirka River Basin
      • Ust'-Nera
[Strengite] Gamyanin et al. (2014)
Rwanda
 
  • Western Province
    • Ngororero District
      • Bwira
[Variscite] Lefèvre et al. (http://www.minsocam.org/msa/special/pig/PIG_articles/Elba%20Abstracts%2012%20Lefevre.pdf) +1 other reference
      • Muhororo
[Strengite, Variscite] von Knorring et al. (1982) +1 other reference
[Strengite] Bertossa
      • Ndaro
[Variscite] Bertossa
Senegal
 
  • Kédougou Region
    • Saraya
[Strengite, Variscite] Gineste et al. (2005)
Seychelles
 
[Variscite] Baker (1963)
Slovakia
 
  • Banská Bystrica Region
    • Banská Bystrica District
      • Špania Dolina
[Variscite] Kodě +1 other reference
    • Banská Štiavnica District
      • Banská Štiavnica
[Strengite] Martin Števko-unpublished
    • Revúca District
      • Sirk
[Variscite] Palache et al. (1951)
  • Košice Region
[Variscite] Koděra et al. (1986)
South Africa
 
  • Gauteng
    • West Rand District Municipality
      • Far West Rand
        • Oberholzer
[Strengite] Martini et al. (1978)
[Strengite] Cairncross et al. (1995)
        • Western Sector
          • Carletonville
[Strengite, Variscite] Martini et al. (1978)
  • Limpopo
    • Capricorn District Municipality
      • Lepelle-Nkumpi Local Municipality
[Variscite] Martini et al. (1978)
    • Waterberg District Municipality
      • Mogalakwena Local Municipality
        • Mokopane
[Strengite] Martini et al. (1978)
      • Thabazimbi Local Municipality
        • Thabazimbi
          • Glenover carbonatite
[Strengite, Variscite] Cairncross et al. (1995)
  • Mpumalanga
    • Ehlanzeni District Municipality
      • Mbombela Local Municipality
        • Mbombela
[Strengite, Variscite] Martini (1997)
  • North West
    • Dr Kenneth Kaunda District Municipality
      • JB Marks Local Municipality
        • Ventersdorp
[Strengite] Martini et al. (1998)
[Strengite, Variscite] Martini et al. (1978) +1 other reference
  • Northern Cape
    • Namakwa District Municipality
      • Khâi-Ma Local Municipality
        • Aggeneys
[Variscite] B. Cairncross photo ID 1055123
      • Nama Khoi Local Municipality
        • Steinkopf
[Strengite] Cairncross et al. (1995)
[Strengite] Von Backstroem (1973)
    • ZF Mgcawu District Municipality
      • Kai !Garib Local Municipality
        • Kenhardt
[Strengite] Cairncross et al. (1995)
  • Western Cape
    • West Coast District Municipality
      • Cederberg Local Municipality
[Variscite] Miller et al. (2016)
[Strengite] Cairncross et al. (1995)
South Korea
 
  • North Jeolla Province
    • Jangsu County
      • Kyenae-myon
[Strengite] Kinosaki (1940)
Spain
 
  • Andalusia
    • Huelva
      • Cumbres de San Bartolomé
[Variscite] Calvo Rebollar (2015)
    • Jaén
      • Andújar
[Strengite] Sainz de Baranda Graf (2026)
  • Castile-La Mancha
    • Ciudad Real
      • Almodóvar del Campo
[Strengite] Sáinz de Baranda et al. (2004)
[Strengite] www.foro-minerales.com (2022) +1 other reference
  • Castile and Leon
    • León
      • Castrocalbón
[Variscite] Calvo Rebollar (2015)
      • Puente de Domingo Flórez
        • Yeres
[Variscite] Calvo Rebollar (2025)
    • Salamanca
      • Garcirrey
[Strengite, Variscite] Christian Rewitzer collection
    • Zamora
      • San Vicente de la Cabeza
[Variscite] Calvo Rebollar (2015)
[Strengite, Variscite] Moro et al. (1995)
  • Catalonia
    • Barcelona
      • Baix Llobregat
[Strengite, Variscite] F. Costa et al.
          • Bruguers
[Strengite, Variscite] Joan Rosell (2023)
[Strengite, Variscite] Bareche (2005)
[Variscite] Bosch +6 other references
[Variscite] Díaz-Acha et al. (2022)
[Variscite] Díaz-Acha et al. (2022)
[Variscite] Joan Rosell-Riba (2026)
      • Barcelonès
        • Barcelona
          • Puig d'Olorda
[Variscite] Bareche (2005)
        • Barcelona city
          • Collserola mountain range
            • Santa Creu d'Olorda
[Variscite] J L Bravo collection
      • Maresme
[Variscite] Joan Rosell - Carles Gili
[Variscite] Calvo Rebollar (2015)
        • Tordera
[Variscite] Marc C collection
      • Vallès Occidental
        • Montcada i Reixac
[Strengite, Variscite] Mineralogistes de Catalunya (1997)
    • Tarragona
      • Priorat
[Variscite] Joan Rosell (02/2016)
[Variscite] J. Rosell (02/2016)
  • Extremadura
[Strengite]
      • Zarza la Mayor
[Strengite] Calvo et al. (2011)
  • Galicia
    • A Coruña
      • Arteixo
[Strengite] Miguel Calvo Rebollar (2015)
    • Pontevedra
      • Gondomar
        • Vincios
          • Galiñeiro Complex
[Strengite] NÚÑEZ-GARCÍA et al. (2012) +1 other reference
      • Moaña
[Strengite] Vérez et al. (2024)
      • Tomiño
[Strengite, Variscite] Calvo Rebollar (2015)
Sudan
 
  • South Kordofan
[Variscite] Abdelmajid et al. (2014)
Sweden
 
  • Norrbotten County
    • Kiruna
      • Kiruna Town Mining District
[Strengite] Palache et al. (1951)
      • Svappavaara
[Strengite, Variscite] Bjällerud (1989) +2 other references
Taiwan
 
  • New Taipei City
    • Ruifang District
[Variscite] James Huang
Tajikistan
 
  • Sughd
    • Mastchoh District
      • Altyn-Topkan ore field (Zarnisor ore field)
[Variscite] Likhachov et al. (eds.)
    • Zeravshan Range
      • Pendzhikent District
[Strengite, Variscite]
UK
 
  • England
    • Cornwall
      • Calstock
        • Drakewalls
[Strengite] Craik-Smith (2000)
      • Linkinhorne
        • Minions
[Strengite] Golley et al. (1995)
      • Perranzabuloe
        • Perran Iron Lode (Great Perran Iron Lode)
[Strengite] Golley et al. (1995)
      • St Endellion
[Variscite] Golley et al. (1995)
      • Treverbyn
        • Stenalees
[Variscite] Golley et al. (1995) +1 other reference
[Variscite] Weiss (1994)
    • Cumbria
      • Allerdale
        • Above Derwent
          • Causey Pike
            • Scar Crag
[Variscite] Young (1988) +1 other reference
        • Caldbeck
          • Coombe Height
[Strengite] Hartley (1984) +2 other references
[Strengite] Stanley et al. (1991)
      • Eden
        • Mungrisdale
[Strengite] Cooper et al. (1990) +1 other reference
[Strengite] Cooper et al. (1990)
    • Devon
      • North Devon
        • Bishop's Tawton
[Strengite, Variscite] Alysson Rowan collection
        • West Buckland
[Variscite] Day (1999)
  • Wales
    • Swansea
      • Pennard
[Variscite] Ian Jones collection
Uruguay
 
  • Lavalleja Department
    • Minas
[Strengite, Variscite] Eckel et al. (1953)
USA
 
  • Alabama
    • Calhoun County
      • Jacksonville
[Strengite] Barwood et al. (1978) +1 other reference
[Strengite] King et al. (1995)
    • Cherokee County
[Strengite, Variscite] Henry Barwood
[Strengite, Variscite] Rocks & Min.: 64:203. +1 other reference
[Strengite] Cook et al. (1982)
      • Rock Run
        • Wolfden Mountain
[Strengite] Dean (1995)
[Strengite] Dean (1995)
    • Shelby County
      • Alabaster
[Strengite] chris bryant +1 other reference
  • Arizona
    • Apache County
      • Cane Valley Mining District
        • Yazzie Mesa
          • Monument No. 2 channel
[Variscite] Anthony et al. (1995)
    • Cochise County
[Variscite] Anthony et al. (1995)
[Variscite, Variscite var: Ferrian Variscite] Luetcke (n.d.) +1 other reference
    • Yavapai County
      • Eureka Mining District
        • Hillside
          • Bagdad Mine area
[Strengite] Dunn et al. (1984) +1 other reference
[Strengite] Jahns (1952) +1 other reference
        • Independence Gulch
[Strengite] Jahns (1952)
[Strengite] Jahns (1952)
  • Arkansas
    • Garland County
      • Avant
[Variscite] Arthur E. Smith (2008)
[Variscite] Rocks & Minerals (2010)
[Variscite] Rocks & Min.:64:296.
[Variscite] Arthur E. Smith (2008)
      • Hot Springs
[Variscite] Arthur E. Smith (2008)
      • Wilson Springs (Potash Sulfur Springs)
        • Union Carbide Mine
[Strengite, Variscite] Howard +1 other reference
    • Montgomery County
      • Mauldin Mountain
[Variscite] Rocks & Min.: 56:190.
[Variscite] Rocks & Min.: 63:112.
      • North Mountain
[Variscite] Rocks & Min.: 63: 113. +2 other references
    • Polk County
      • Big Fork
[Variscite] Rocks & Min.:63:118.
[Strengite] Smith (1988)
      • Shady
[Strengite] Rocks & Min.:64:297-298.
[Strengite] Am Min 51:1811-1814
[Strengite] Smith (1988)
      • Three Oak Gap
[Strengite] Smith (1988)
  • California
    • Amador County
      • Jackson-Plymouth Mining District
        • Martell
[Strengite] Hulin (1930) +3 other references
    • El Dorado County
      • Slate Mountains
        • Slate Mountain District
          • Slate Mountain
[Strengite, Variscite] www.mineralsocal.org (1999)
    • Mono County
      • White Mountains
        • White Mountain Peak
[Strengite] Zach Berghorst Collection
    • San Diego County
      • Jacumba
        • Tule Mountain (Mount Tule; Tulley Mountain)
[Strengite] Fisher (2002)
      • Pala Mining District
        • Pala
[Strengite] Jahns et al. (1951)
[Strengite] Seaman (1976)
  • Colorado
    • Custer County
[Strengite] Eckel et al. (1997)
[Strengite] Eckel et al. (1997)
    • Routt County
[Variscite] Eckel et al. (1997)
    • Teller County
      • Cripple Creek Mining District
[Strengite] Carnein et al. (2005)
  • Connecticut
    • Hartford County
      • Glastonbury
        • East Glastonbury
[Strengite] Rocks & Min.: 70:398
  • Florida
    • Polk County
      • Central Florida Phosphate Mining District (Bone Valley)
        • Homeland
[Strengite, Variscite] Denicourt +1 other reference
        • Noralyn/Phosphoria Mines (IMC-Agrico)
[Strengite, Variscite] Marc V. Hurst (2012)
  • Georgia
    • Bartow County
      • Iron Hill Mining District
[Strengite] Rocks & Min.:64:185 +1 other reference
    • Burke County
      • Girard Mining District
[Strengite, Variscite] Jason Smith & M.E. Ciriotti (2005)
    • Lincoln County
[Strengite, Variscite] Barwood (1999)
    • Polk County
      • Cedartown
[Strengite] Rocks & Min.: 64:203.
[Strengite] Rocks & Minerals 54:4 pp161-165
  • Idaho
    • Fremont County
[Variscite] Ream (2004)
    • Latah County
      • Avon Mining District (Mica Mountain Mining District)
[Strengite] Ream (2004)
  • Indiana
    • Pike County
[Strengite] Simmons et al. (1984)
[Strengite] www. Rogers Minerals.com
  • Maine
    • Oxford County
      • Greenwood
        • Uncle Tom Mountain
[Strengite] Falster et al. (2019)
      • Newry
[Strengite] King et al. (1994) +1 other reference
      • Paris
[Strengite] Found during ongoing study of Ryerson ... +1 other reference
  • Missouri
[Variscite] USGS National Geochemical Database ...
  • Nevada
    • Elko County
      • Carlin Mining District
[Variscite] Castor et al. (2004)
[Variscite] Castor et al. (2004)
    • Esmeralda County
      • Candelaria Mining District
[Variscite] - (2005)
[Variscite] Rocks & Minerals. Nov. 1999. +1 other reference
[Variscite] Upper Advance Adit +1 other reference
[Variscite] NBMG Bull 78 Geology and Mineral ...
[Variscite] NBMG Bull 78 Geology and Mineral ... +1 other reference
[Strengite, Variscite] Castor et al. (2004)
      • Coaldale Mining District
[Variscite] Castor et al. (2004)
[Variscite] Castor et al. (2004)
[Variscite] NBMG Bull 78 Geology and Mineral ...
[Variscite] Castor et al. (2004)
      • Crow Springs Mining District
[Variscite] Castor et al. (2004)
[Variscite] Castor et al. (2004)
      • Gilbert Mining District
[Variscite] NBMG Bull 78 Geology and Mineral ...
[Strengite] Excalibur Mineral Company specimen
      • Goldfield Mining District
[Variscite] Castor et al. (2004)
    • Eureka County
      • Carlin Trend
        • Maggie Creek Mining Subdistrict
[Strengite, Variscite] Newmont Mining Corporation
[Variscite] Castor et al. (2004)
      • Lynn Mining District
[Strengite, Variscite] Jensen et al. (1995)
[Variscite] Castor et al. (2004)
[Strengite, Variscite] Barrick Gold Corporation
    • Humboldt County
      • Buffalo Mountain Mining District
[Variscite] Newmont Mining Corporation
      • Iron Point Mining District
        • Valmy
[Strengite, Variscite] Dr. William S. Wise presentation to ... +1 other reference
      • Osgood Mountains
        • Potosi Mining District
[Variscite] Rocks & Minerals. Nov. 1999.
[Variscite] Newmont Mining Corporation
    • Lander County
[Variscite] Castor et al. (2004)
      • Birch Creek Mining District
[Variscite] Castor et al. (2004)
      • Bullion Mining District
[Variscite] Walstrom (n.d.)
[Variscite] Rockpick Legend specimen
[Variscite] Castor et al. (2004)
[Variscite] Dr. Tony Kampf of the Los Angeles ...
      • Reese River Mining District
[Variscite] Castor et al. (2004)
      • Simpson Park Mountains
[Variscite] collected by and in the collection of ... +1 other reference
    • Lyon County
      • Singatse Range
        • Yerington Mining District
[Strengite] In the collection of Brent Thorne. ...
          • Yerington
[Strengite, Variscite] Pullman et al. (1999)
      • Wellington Hills
        • Silver Glance Mining District (Wellington Mining District)
[Strengite] MarekC pers. coll. 2015
    • Mineral County
      • Candelaria Mining District
[Variscite] Kampf et al. (2016)
        • Candelaria Silver Mine
[Variscite] Collection of Kelly Starnes 1990
[Variscite] Ross (1961)
      • Silver Star Mining District
[Variscite] Castor et al. (2004)
[Variscite] NBMG Rept 17 Turquoise Deposits of Nevada (1968)
    • Nye County
      • San Antonio Mountains
        • Tonopah Mining District
          • Tonopah
[Variscite] personal referernce
      • Toquima Range
[Strengite, Strengite var: Aluminium-bearing Strengite] Palache et al. (1951)
[Strengite] Castor et al. (2004)
          • Manhattan
[Variscite] Castor et al. (2004)
            • Mustang Hill
[Strengite] Castor et al. (2004)
[Strengite, Variscite] Kleinhampl et al. (1984) +1 other reference
[Strengite, Variscite] Castor et al. (2004)
        • Northumberland Mining District
[Strengite] MinRec 16 (1)
[Variscite] Castor et al. (2004)
    • Pershing County
[Variscite] Castor et al. (2004)
      • Willard Mining District
[Strengite, Variscite] Jensen et al. (2001)
    • White Pine County
      • Robinson Mining District
[Variscite] Mason (1976)
  • New Hampshire
    • Cheshire County
      • Alstead
[Strengite] Smith (2005)
[Strengite] Hurlbut (1965) +1 other reference
    • Grafton County
      • Groton
[Strengite] Smith (2005) +1 other reference
[Strengite] Palache et al. (1951) +2 other references
[Strengite] Rocks & Min. +2 other references
      • Orange
[Strengite] Thompson et al. (2022)
    • Strafford County
      • Strafford
[Strengite] Rocks & Minerals 80:4 pp234-241 +1 other reference
  • New Jersey
    • Gloucester County
      • Harrison Township
[Strengite] Henderson (1980)
[Strengite] Locality description: "[...] all the ...
  • New Mexico
    • Doña Ana County
      • Organ Mountains
        • Organ Mining District
[Strengite] Jerry Cone Collection
[Strengite] B.A. Collection
    • Grant County
      • Burro Mountains Mining District
        • Tyrone Area
[Strengite] Freeport-McMoRan
[Strengite] Jerry Cone Collection
    • Santa Fe County
[Variscite] Northrop et al. (1996)
  • North Carolina
    • Alamance County
      • Snow Camp
[Strengite, Variscite] Jason B. Smith collection
    • Cleveland County
      • Kings Mountain
[Strengite, Variscite] Horton et al. (1981) +1 other reference
    • Forsyth County
[Variscite] Smithsonian Institution Mineral ...
    • Gaston County
[Strengite]
    • Orange County
      • Hillsborough
[Strengite] www.mindat.org/mesg-11-168140.html
    • Randolph County
      • Staley
[Variscite] - (1977)
  • Pennsylvania
    • Centre County
      • State College
        • Skytop
[Variscite] U.S. Geological Survey/ U.s. Department ...
    • Cumberland County
      • Carlisle
        • Waggoners Gap
[Variscite] Grant (Apr, 1973) +1 other reference
      • Mount Holly Springs
[Strengite, Variscite] Palache et al. (1951) +1 other reference
    • Lancaster County
      • Salisbury Township
        • Gap
[Strengite] Palache et al. (1951)
    • Northampton County
      • Lower Saucon Township
        • Hellertown
[Strengite] Montgomery (1969)
    • Snyder County
      • Perry Township
        • Mount Pleasant Mills
          • Lime Ridge
[Variscite] K. Cabaniss & L.E. Kearns (2011)
  • South Carolina
    • Cherokee County
      • Kings Creek Mining District
        • Kings Creek Mine
[Strengite, Variscite] Rocks & Minerals 54:4 pp173-175
  • South Dakota
    • Custer County
      • Custer Mining District
        • Custer
[Strengite] Peacor (1969) +1 other reference
[Strengite] Loomis (2011)
        • Fourmile
[Strengite] Rocks & Minerals: 60: 117. +1 other reference
        • Pringle
          • Cicero Peak
[Strengite] Julius Weber collection
    • Lawrence County
      • Bald Mountain Mining District (Portland Mining District)
[Variscite] Loomis (2011)
      • Trojan Mining District
[Variscite] Smith et al. (2000)
    • Pennington County
      • Keystone Mining District
[Strengite] Smith et al. (2000)
        • Keystone
[Strengite] Peacor et al. (1984)
[Strengite] Rocks & Minerals: 67 (6)
      • Unorganized mining district [5]
[Strengite] King (n.d.)
  • Tennessee
    • Cocke County
      • Del Rio Mining District
[Strengite, Variscite, Variscite var: Ferrian Variscite] R&M 72:4 pp 268-270
    • Lawrence County
      • Iron City
[Strengite] Paris (2011)
  • Utah
    • Box Elder County
      • Curlew Valley
[Variscite] Bullock (1981)
[Variscite] Schaller (1912)
        • Utahlite Hill
[Variscite] Palache et al. (1951)
[Strengite, Variscite] J. Marty (1995)
      • Promontory Mountains
        • Promontory Mining District
[Variscite] Bullock (1981)
      • Tecoma Hill
[Variscite] Bullock (1981)
[Variscite] - (2005)
[Variscite] - (2005)
[Variscite] - (2005)
[Variscite] - (2005)
    • Emery County
[Variscite] Gruner (1959)
    • Salt Lake County
[Variscite] Lavinsky (n.d.)
[Variscite] Mason (1976)
      • Mercur Mining District
[Variscite] Bullock (1981)
[Variscite] Bullock (1981)
[Variscite] Bullock (1981)
      • Stansbury Mountains
[Variscite] American Mineralogist 27:443 +2 other references
    • Uintah County
[Variscite] www.mindat.org (n.d.) +1 other reference
    • Utah County
      • Sunshine Mining District
        • Fairfield
[Variscite] Palache et al. (1951)
[Variscite] - (2005)
[Variscite] Wilson (2010)
[Variscite] - (2005)
[Variscite] - (2005)
  • Virginia
    • Amelia County
      • Winterham
[Strengite] Kearns et al. (2000)
    • Buckingham County
      • Farmville Mining District
        • Sprouses Corner
[Variscite] Mitchell et al. (2)
[Variscite] Dietrich (1990)
    • Giles County
[Variscite] Dietrich (1990)
    • Nelson County
[Strengite] Dietrich (1990)
    • Rockbridge County
      • Lyndhurst-Vesuvius Mining District
[Strengite] Watson (1907) +1 other reference
[Variscite] Rocks & Min.: 57:20-22 & 60:168.
      • Midvale
        • South Mountain
[Strengite] Rocks & Minerals: 57: 20 +2 other references
  • Wisconsin
    • Dodge County
      • Iron Ridge Mining District (Neda Iron Mining District)
[Variscite] Hawley (1934)
[Variscite] Hawley (1934)
[Variscite] Hawley (1934)
    • Jackson County
[Variscite] Klemic et al. (1972) +1 other reference
Uzbekistan
 
  • Navoiy
    • Central Kyzylkum Region
      • Auminzatau Mountains
[Variscite] Pavel M. Kartashov (n.d.)
      • Lyavlyakan-Beshkak ore field
[Variscite] Solodov et al. (2001)
    • Kokpatas village
[Variscite] Mineraly Uzbekistana (Minerals of the Uzbekistan)
Venezuela
 
  • Federal Dependencies
[Variscite, Variscite var: Ferrian Variscite] Shepard (1877) +1 other reference
[Variscite, Variscite var: Ferrian Variscite] Palache et al. (1951)
Zimbabwe
 
  • Mashonaland West
    • Karoi District
[Strengite] Gallagher (1967)
Mars
 
  • Aeolis quadrangle
    • Gale Crater
      • Aeolis Mons (Mount Sharp)
        • Lower Mt. Sharp
          • Glen Torridon
[Strengite] Treiman et al. (2023)
    • Gusev Crater
      • Columbia Hills
        • Husband Hill
          • Cumberland Ridge
[Strengite] Lane et al. (2008)
 
and/or  
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