de Brodtkorb, M.K., Paar, W. (2004) Angelaita en la paragenesis del distrito Los Manantiales, provincia del Chubut: Una nueva especie mineral: Revista de la Associacion Geologica Argentina: 59(4): 787-789. https://rruff.info/rruff_1.0/uploads/RdlAGA59_2004_787-789.pdf

Classification of ÁngelaiteHide

Strunz-mindat (2026):

2.JB.25f

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb

Dana 8th ed.:

3.1.5.2

3 : SULFOSALTS
1 : ø > 4

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference for Standard
Áge	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of ÁngelaiteHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Gray with a brownish tint

Streak:

Dark gray

Hardness:

3½ on Mohs scale

Hardness:

VHN₁₀=245 - 263 kg/mm² - Vickers

Tenacity:

Brittle

Cleavage:

None Observed

Fracture:

Irregular/Uneven

Density:

6.934 g/cm³ (Calculated)

Comment:

Calculated from the empirical formula

Optical Data of ÁngelaiteHide

Anisotropism:

Strong, pale grey, deep green and deep blue

Bireflectance:

Strong

Reflectivity:

Wavelength	R₁ (%)	R₂ (%)	^imR₁ (%)	^imR₂ (%)
400nm	40.7%	44.7%	23.5%	25.6%
440nm	40.6%	45.6%	23.8%	26.3%
470nm	40.2%	45.7%	23.8%	26.4%
480nm	40.1%	45.5%	23.7%	26.3%
520nm	39.5%	44.8%	23.3%	26.0%
546nm	39.3%	44.5%	23.2%	25.9%
560nm	39.2%	44.3%	23.1%	25.8%
589nm	38.9%	44.1%	23.1%	25.7%
600nm	38.9%	44.0%	23.0%	25.7%
640nm	38.7%	44.1%	23.0%	25.7%
650nm	38.6%	44.1%	23.0%	25.8%
660nm	38.6%	44.1%	23.1%	25.8%
700nm	38.5%	44.1%	23.1%	25.9%

Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 45.7%.
R₁ shown in black, R₂ shown in red, ^imR₁ shown in green, ^imR₂ shown in blue

Colour in reflected light:

Grey with a brownish tint

Internal Reflections:

None

Pleochroism:

Strong

Comments:

Light grey with a brownish tint to light cream with a greenish tint

Chemistry of ÁngelaiteHide

Mindat Formula:

Cu₂AgPbBiS₄

Element Weights:

Element	% weight
Bi	26.813 %
Pb	26.585 %
S	16.456 %
Cu	16.306 %
Ag	13.840 %

Calculated from ideal end-member formula.

Elements listed:

Ag, Bi, Cu, Pb, S - search for minerals with similar chemistry

Crystallography of ÁngelaiteHide

Crystal System:

Orthorhombic

Class (H-M):

mmm(2/m2/m2/m) - Dipyramidal

Space Group:

Pnma

Cell Parameters:

a = 12.734(5) Å, b = 4.032(1) Å, c = 14.633(5) Å

Ratio:

a:b:c = 3.158 : 1 : 3.629

Unit Cell V:

751.2 Å³

Twinning:

None observed

Comment:

Originally reported as monoclinic-pseudoorthorhombic.

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.672 Å	(100)
3.660 Å	(64)
3.407 Å	(60)
3.319 Å	(62)
3.317 Å	(62)
3.111 Å	(69)
3.022 Å	(72)
3.017 Å	(72)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of ÁngelaiteHide

Type Locality:

ⓘ Ángela mine, Los Manantiales mining district, Gastre Department, Chubut Province, Argentina

General Appearance of Type Material:

inclusions in galena to 200 x 50 microns

Place of Conservation of Type Material:

Systematic Mineralogical Collection of the Department of Materials Research and Physics, Division of Applied Mineralogy, University of Salzburg, Austria, catalogue number 14934.

Geological Setting of Type Material:

epithermal gold ore in volcanic rock

Associated Minerals at Type Locality:

Aikinite	Arsenopyrite	Betekhtinite	Bornite	Cervelleite
Chalcopyrite	'Electrum'	Galena	Native Gold	Hematite
Matildite	Miharaite	Pyrite	Native Silver	Sphalerite
Native Tellurium	Wittichenite

Reference:

Synonyms of ÁngelaiteHide

Angelaite

IMA2003-064

Other Language Names for ÁngelaiteHide

Dutch:Ángelaiet

French:Ángelaite

German:Ángelait
Angelait

Norwegian:Ángelaitt

Common AssociatesHide

Associations Based on Photo Data:

3 photos of Ángelaite associated with Galena	PbS
2 photos of Ángelaite associated with Chalcopyrite	CuFeS₂

Related Minerals - Strunz-mindat Grouping Hide

2.JB.	Clino-oscarkempffite	Ag₁₅Pb₆Sb₂₁Bi₁₈S₇₂	Mon. 2/m : P2₁/b
2.JB.	Arsenquatrandorite	Ag_17.6Pb_12.8Sb_38.1As_11.5S₉₆	Mon. 2/m : P2₁/b
2.JB.	Ginelfite	Ag₂(Ag_0.5Fe)TlPb_23.5(Sb,As)_33.5S₇₆	Tric. 1 : P1
2.JB.	Andreadiniite	CuHgAg₇Pb₇Sb₂₄S₄₈	Mon. 2/m : P2₁/b
2.JB.	Chukotkaite	AgPb₇Sb₅S₁₅	Mon. 2/m : P2₁/b
2.JB.	Selenojunoite	Cu₂Pb₃Bi₈Se₁₆	Mon. 2/m : B2/m
2.JB.	Lechnerite	Ag₁₀Cu₄HgPb₃₃Sb₅₈S₁₂₈	Tric. 1 : P1
2.JB.	Cuprosenandorite	Ag₁₆Cu₈Pb₂₄Sb₇₂S₁₄₄	Orth. mm2 : Pna2₁
2.JB.	Morleyite	Ag₂CuPb₂₅Sb₂₄As₄S_68.5	Tric. 1 : P1
2.JB.	Lazerckerite	Ag_3.75Pb_4.50(Sb_7.75Bi₄)S₂₄	Mon. 2/m : P2₁/b
2.JB.	Lasmanisite	Ag₁₂Pb₁₃Mn₁₁Sb₄₄S₉₆	Orth. 222 : P2₁2₁2₁
2.JB.	Montpelvouxite	AgPb₁₆Sb₂₇As₁₈S₈₄	Tric. 1 : P1
2.JB.	Senandorite	AgPbSb₃S₆	Orth. mm2 : Pmn2₁
2.JB.	Oscarkempffite	Ag₁₀Pb₄(Sb₁₇Bi₉)S₄₈	Orth. mm2
2.JB.05	Diaphorite	Ag₃Pb₂Sb₃S₈	Mon. 2/m : P2₁/b
2.JB.10	Cosalite	Pb₂Bi₂S₅	Orth. mmm(2/m2/m2/m)
2.JB.15	Marrite	AgPbAsS₃	Mon. 2/m : P2₁/b
2.JB.15	Freieslebenite	AgPbSbS₃	Mon. 2/m : P2₁/b
2.JB.20	Cannizzarite	Pb₄₈Bi₅₆S₁₃₂	Mon. 2/m : P2₁/m
2.JB.20	Wittite	Pb₉Bi₁₂(S,Se)₂₇	Mon.
2.JB.25j	Rouxelite	Cu₂HgPb₂₃Sb₂₇S_65.5	Tric. 1 : P1
2.JB.25i	Neyite	Ag₂Cu₆Pb₂₅Bi₂₆S₆₈	Mon. 2/m : B2/m
2.JB.25a	Junoite	Cu₂Pb₃Bi₈(S,Se)₁₆	Mon. 2/m : B2/m
2.JB.25e	Galenobismutite	PbBi₂S₄	Orth. mmm(2/m2/m2/m)
2.JB.25c	Nordströmite	CuPb₃Bi₇(Se₄S₁₀)	Mon. 2/m : P2₁/m
2.JB.25i	Cuproneyite	Cu₇Pb₂₇Bi₂₅S₆₈	Mon. 2/m : B2/m
2.JB.25g	Nuffieldite	Cu_1.4Pb_2.4Bi_2.4Sb_0.2S₇	Orth. mmm(2/m2/m2/m)
2.JB.25h	Weibullite	Pb₅Bi₈Se₇S₁₁	Orth. mmm(2/m2/m2/m) : Pnma
2.JB.25d	Proudite	CuPb_7.5Bi_9.33(S,Se)₂₂	Mon. 2/m : B2/m
2.JB.25b	Felbertalite	Cu₂Pb₆Bi₈S₁₉	Mon. 2/m : B2/m
2.JB.30a	Jordanite	Pb₁₄As₆S₂₃	Mon. 2/m : P2₁/m
2.JB.30a	Geocronite	Pb₁₄Sb₆S₂₃	Mon. 2/m : P2₁/m
2.JB.30a	Arsenmarcobaldiite	Pb₁₂(As_3.2Sb_2.8)_Σ6S₂₁	Tric. 1 : P1
2.JB.30b	Kirkiite	Pb₁₀Bi₃As₃S₁₉	Mon. 2/m : P2₁/m
2.JB.30c	Tsugaruite	Pb₂₈As₁₅S₅₀Cl	Orth. mm2 : Pnn2
2.JB.30a	Marcobaldiite	Pb₁₂(Sb₃As₂Bi)_Σ6S₂₁	Tric. 1 : P1
2.JB.35d	Pellouxite	(Cu,Ag)Pb₁₀Sb₁₂S₂₇O(Cl,S)_0.6	Mon. 2/m : B2/m
2.JB.35e	Chovanite	Pb_15-2xSb_14+2xS₃₆O_x (x ~ 0.2)	Mon. 2/m : B2/m
2.JB.35a	Zinkenite	Pb₉Sb₂₂S₄₂	Hex. 6 : P6₃
2.JB.35c	Pillaite	Pb₉Sb₁₀S₂₃ClO_0.5	Mon. 2/m : B2/m
2.JB.35b	Scainiite	Pb₁₄Sb₃₀S₅₄O₅	Mon. 2/m : B2/m
2.JB.35f	Tubulite	Ag₂Pb₂₂Sb₂₀S₅₃	Mon. m : Pb
2.JB.40a	Fizélyite	Ag₅Pb₁₄Sb₂₁S₄₈	Mon. 2/m
2.JB.40a	Ramdohrite	Pb_5.9Fe_0.1Mn_0.1In_0.1Cd_0.2Ag_2.8Sb_10.8S₂₄	Mon. 2/m
2.JB.40e	Ustarasite	Pb(Bi,Sb)₆S₁₀ (?)
2.JB.40a	'Bursaite'	Pb₅Bi₄S₁₁ (?)	Orth.
2.JB.40	'UM1988-05-S:AgBiCuHgPb'	(Hg,Ag,Cu,Pb)₅Pb₅Bi₁₁S₂₇
2.JB.40	'UM1988-06-S:AgBiCuHgPb'	(Pb,Hg)₁₂(Cu,Ag)₃(Bi,Sb)₁₀(S,Te)₂₇
2.JB.40a	Terrywallaceite	AgPb(Sb,Bi)₃S₆	Mon. 2/m : P2₁/b
2.JB.40a	Jasrouxite	Ag₁₆Pb₄(Sb₂₅As₁₅)S₇₂	Tric. 1 : P1
2.JB.40a	Tarutinoite	Ag₃Pb₇Bi₇S₁₉	Mon. 2/m : B2/m
2.JB.40a	Oyonite	Ag₃Mn₂Pb₄Sb₇As₄S₂₄	Mon. 2/m
2.JB.40b	Heyrovskýite	Pb₆Bi₂S₉	Orth. mmm(2/m2/m2/m) : Cccm
2.JB.40a	Quatrandorite	AgPbSb₃S₆	Mon. 2/m : P2₁/b
2.JB.40a	Erzwiesite	Ag₈Pb₁₂Bi₁₆S₄₀	Orth. mmm(2/m2/m2/m) : Cmcm
2.JB.40a	Vikingite	Ag₅Pb₈Bi₁₃S₃₀	Mon. 2/m : B2/m
2.JB.40a	Lillianite	Pb_3-2xAg_xBi_2+xS₆	Orth. mmm(2/m2/m2/m)
2.JB.40b	Baiamareite	Ag₄Pb₁₂Fe₄Sb₂₀S₄₈	Mon. 2/m
2.JB.40a	Staročeskéite	Ag_0.70Pb_1.60(Bi_1.35Sb_1.35)_Σ2.70S₆	Orth. mmm(2/m2/m2/m) : Cmcm
2.JB.40a	Roshchinite	Ag₁₉Pb₁₀Sb₅₁S₉₆	Orth. mmm(2/m2/m2/m) : Pnma
2.JB.40b	Aschamalmite	Pb_6-3xBi_2+xS₉	Mon. 2/m : B2/m
2.JB.40b	Eskimoite	Ag₇Pb₁₀Bi₁₅S₃₆	Mon.
2.JB.40a	Menchettiite	AgPb_2.40Mn_1.60Sb₃As₂S₁₂	Mon. 2/m : P2₁/b
2.JB.40a	Holubite	Ag₃Pb₆(Sb₈Bi₃)S₂₄	Mon. 2/m
2.JB.40a	Brusnitsynite	Mn₃CuPbAs₃Sb₂S₁₂	Mon. 2/m : P2₁/b
2.JB.40a	Treasurite	Ag₇Pb₆Bi₁₅S₃₂	Mon.
2.JB.40c	Ourayite	Ag₃Pb₄Bi₅S₁₃	Orth.
2.JB.40a	Uchucchacuaite	AgMnPb₃Sb₅S₁₂	Orth. mmm(2/m2/m2/m) : Pmmm
2.JB.40d	'Schirmerite'	PbAgBi₃S₆ - Pb₃Ag_1.5Bi_3.5S₉	Orth.
2.JB.40a	Xilingolite	Pb₃Bi₂S₆	Mon.
2.JB.40a	Gustavite	AgPbBi₃S₆	Orth. mmm(2/m2/m2/m)
2.JB.55	Gratonite	Pb₉As₄S₁₅	Trig. 3m : R3m
2.JB.60	Marrucciite	Hg₃Pb₁₆Sb₁₈S₄₆	Mon. 2/m : B2/m
2.JB.65	Vurroite	Pb₂₀Sn₂(Bi,As)₂₂S₅₄Cl₆	Mon. 2/m : B2/b
2.JB.65	Tazieffite	Pb₂₀Cd₂(As,Bi)₂₂S₅₀Cl₁₀	Mon. 2/m : B2/b
2.JB.70	Daliranite	PbHgAs₂S₅	Mon.

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 ÁngelaiteHide

mindat.org URL:

https://www.mindat.org/min-26701.html
Please feel free to link to this page.

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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

Buy from D. Joyce minerals

References for ÁngelaiteHide

Reference List:

Wiechowski, A., Arizmendi, A., Brodtkorb, M.K. de (1990) Estudio analítico de las sulfosales de la mina Ángela, dpto. Gastre, prov. del Chubut, Argentina. Asociación Arg. Geol. Ec., Publ. Esp. (Homenaje al Ing. Victorio Angelelli): 41-43. (as mineral X)

Arizmendi, A., Brodtkorb, M.K. de, Bernhardt, H.J. (1996): Paragénesis mineral de la mina Ángela, dpto. Gastre, Chubut. 3° Reunión de Mineralogía y Metalogenía, Universidad Nacional de la Plata 5: 1-7.

Topa, D., Makovicky, E., Paar, W., Brodtkorb, M. (2004): The crystal structure of Angelaite, Cu2AgPbBiS4, a new mineral species from Angela mine, Province of Chubut, Argentina. 32nd IGC - Florence, 2004.

Topa, Dan, Paar, Werner H., Putz, Hubert, Zagler, Georg, de Brodtkorb, Milka K., Stanley, Chris J., Roberts, Andrew C., Makovicky, Emil (2010) Mineralogical data on angelaite, Cu₂AgPbBiS₄, from the Los Manantiales District, Chubut, Argentina. The Canadian Mineralogist, 48 (1). 139-144 doi:10.3749/canmin.48.1.139

Topa, D., Makovicky, E., Putz, H. (2010) The crystal structure of angelaite, Cu₂AgPbBiS₄. The Canadian Mineralogist, 48 (1) 145-153 doi:10.3749/canmin.48.1.145

Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2010) CNMNC Newsletter No 6, New minerals and nomenclature modifications approved in 2010. Mineralogical Magazine, 74 (6) 941-942 doi:10.1180/minmag.2010.074.6.941

(2021) Ángelaite. Handbook of Mineralogy. Mineralogical Society of America

Localities for ÁngelaiteHide

Showing 6 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.


Argentina (TL)
Chubut Province Gastre Department Los Manantiales mining district ⓘ Ángela mine (TL)	Topa et al. (2004) +1 other reference

Indonesia
South Sulawesi Province Gowa Regency ⓘ Baturappe prospect	Nur et al. (2012)

Russia
Chelyabinsk Oblast Kaslinsky District ⓘ Porokhovskoe W deposit	Rogov et al. (2023)
ⓘ Yugo-Konevo W deposit	Rogov et al. (2023)
Republic of Karelia Pitkyarantsky District ⓘ Pitkyaranta mining district	Иващенко et al. (2015)

Slovakia
Banská Bystrica Region Banská Štiavnica District Banská Štiavnica ⓘ Bieber vein	Mikuš et al. (2026)

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Ángelaite

About ÁngelaiteHide

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IMA Classification of ÁngelaiteHide