Named in honour of Oscar Kempff Bacigalupo (b. 1948), Bolivian engineering geologist and mineralogist who discovered several large mineral deposits in Bolivia.

Type Locality:

ⓘ 264 level, Colorada vein, Ánimas Mine, Chocaya-Animas mining district (Animas-Chocaya mining district), Atocha Municipality, Sud Chichas Province, Potosí, Bolivia

Lillianite homologue with N = 4. Chemically similar to clino-oscarkempffite, holubite, lazerckerite, and staročeskéite; and somewhat resembling borodaevite and terrywallaceite.

Found in old material (1929-1930).

Hide all sections | Show all sections

Unique IdentifiersHide

Mindat ID:

41958

Long-form identifier:

mindat:1:1:41958:7

GUID
(UUID V4):

b1c9169a-d962-4391-9003-89ac8574fe3f

IMA Classification of OscarkempffiteHide

IMA status:

Approved

Approval year:

2011

First published:

2016

Type description reference:

Topa, Dan, Paar, Werner H., Makovicky, Emil, Stanley, Chris J., Roberts, Andy C. (2016) Oscarkempffite, Ag₁₀Pb₄(Sb₁₇Bi₉)_∑₂₆S₄₈, a new Sb-Bi member of the lillianite homologous series. Mineralogical Magazine, 80 (5) 809-817 doi:10.1180/minmag.2016.080.024

Classification of OscarkempffiteHide

Strunz-mindat (2024):

2.JB.

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

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
Okp	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 OscarkempffiteHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Greyish black

Hardness:

3 - 3½ on Mohs scale

Hardness:

VHN₁₀₀=189 - 208 - Vickers

Tenacity:

Brittle

Cleavage:

None Observed
Without any discernible cleavage

Density:

5.8 g/cm³ (Calculated)

Optical Data of OscarkempffiteHide

Anisotropism:

grey rotation tints

Reflectivity:

Wavelength	R₁	R₂
470nm	39.9%	42.6%
546nm	38.6%	41.7%
589nm	38.1%	41.2%
650nm	37.3%	40.6%

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 42.6%.
R₁ shown in black, R₂ shown in red

Colour in reflected light:

Grayish white

Internal Reflections:

not present

Pleochroism:

Visible

Comments:

White to dark grey

Chemistry of OscarkempffiteHide

Mindat Formula:

Ag₁₀Pb₄(Sb₁₇Bi₉)S₄₈

Elements listed:

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

Common Impurities:

Crystallography of OscarkempffiteHide

Crystal System:

Orthorhombic

Class (H-M):

mm2 - Pyramidal

Cell Parameters:

a = 13.199(2) Å, b = 19.332(3) Å, c = 8.294(1) Å

Ratio:

a:b:c = 0.683 : 1 : 0.429

Unit Cell V:

2,116.32 Å³ (Calculated from Unit Cell)

Morphology:

Anhedral grains; grain aggregates up to 10 mm.

Comment:

Space group: Pnca

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.354 Å	(100)
2.988 Å	(40)
2.889 Å	(80)
2.263 Å	(40)
2.066 Å	(60)
1.766 Å	(50)

Geological EnvironmentHide

Paragenetic Mode(s):

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

Type Occurrence of OscarkempffiteHide

Type Locality:

ⓘ 264 level, Colorada vein, Ánimas Mine, Chocaya-Animas mining district (Animas-Chocaya mining district), Atocha Municipality, Sud Chichas Province, Potosí, Bolivia

General Appearance of Type Material:

Found in old material (1929-30), as anhedral grains, and grain aggregates up to 10 mm across.

Place of Conservation of Type Material:

Department of Materials Engineering and Physics, University of Salzburg, Salzburg,Austria, specimen number 15000, and the Natural History Museum, London, United Kingdom, specimen number BM 20, 3

Associated Minerals at Type Locality:

Reference:

Topa, D., Paar, W.H., Makovicky, E., Stanley, C.J., Roberts, A.C. (2016) Oscarkempffite, Ag10Pb4(Sb17Bi9)Σ26S48, a new Sb-Bi member of the lillianite homologous series. Mineralogical Magazine: 80: 809-817.

Download:

https://rruff.info/rruff_1.0/uploads/MM80_809.pdf

Synonyms of OscarkempffiteHide

IMA2011-029

Other Language Names for OscarkempffiteHide

German:Oscarkempffit

Japanese:オッスカルケッンプフ鉱

Spanish:Oscarkempffita

Relationship of Oscarkempffite to other SpeciesHide

Member of:

Lillianite Homologous Series Group

Other Members of this group:

Andreadiniite	CuHgAg₇Pb₇Sb₂₄S₄₈	Mon. 2/m : P2₁/b
Arsenquatrandorite	Ag_17.6Pb_12.8Sb_38.1As_11.5S₉₆	Mon. 2/m : P2₁/b
Aschamalmite	Pb_6-3xBi_2+xS₉	Mon. 2/m : B2/m
Clino-oscarkempffite	Ag₁₅Pb₆Sb₂₁Bi₁₈S₇₂	Mon. 2/m : P2₁/b
Erzwiesite	Ag₈Pb₁₂Bi₁₆S₄₀	Orth. mmm (2/m 2/m 2/m) : Cmcm
Eskimoite	Ag₇Pb₁₀Bi₁₅S₃₆	Mon.
Fizélyite	Ag₅Pb₁₄Sb₂₁S₄₈	Mon. 2/m
Gustavite	AgPbBi₃S₆	Orth. mmm (2/m 2/m 2/m)
Heyrovskýite	Pb₆Bi₂S₉	Orth. mmm (2/m 2/m 2/m) : Cccm
Holubite	Ag₃Pb₆(Sb₈Bi₃)S₂₄	Mon. 2/m
Jasrouxite	Ag₁₆Pb₄(Sb₂₄As₁₆)S₇₂	Tric. 1 : P1
Lasmanisite	Ag₁₂Pb₁₃Mn₁₁Sb₄₄S₉₆	Orth. 2 2 2 : P2₁ 2₁ 2₁
Lillianite	Pb_3-2xAg_xBi_2+xS₆	Orth. mmm (2/m 2/m 2/m)
Menchettiite	AgPb_2.40Mn_1.60Sb₃As₂S₁₂	Mon. 2/m : P2₁/b
Ourayite	Ag₃Pb₄Bi₅S₁₃	Orth.
Oyonite	Ag₃Mn₂Pb₄Sb₇As₄S₂₄	Mon. 2/m
Quatrandorite	AgPbSb₃S₆	Mon. 2/m : P2₁/b
Ramdohrite	Pb_5.9Fe_0.1Mn_0.1In_0.1Cd_0.2Ag_2.8Sb_10.8S₂₄	Mon. 2/m
Roshchinite	Ag₁₉Pb₁₀Sb₅₁S₉₆	Orth. mmm (2/m 2/m 2/m) : Pnma
Schirmerite	PbAgBi₃S₆ - Pb₃Ag_1.5Bi_3.5S₉	Orth.
Senandorite	AgPbSb₃S₆	Orth. mm2 : Pmn2₁
Staročeskéite	Ag_0.70Pb_1.60(Bi_1.35Sb_1.35)_Σ2.70S₆	Orth. mmm (2/m 2/m 2/m) : Cmcm
Terrywallaceite	AgPb(Sb,Bi)₃S₆	Mon. 2/m : P2₁/b
Treasurite	Ag₇Pb₆Bi₁₅S₃₂	Mon.
Uchucchacuaite	AgMnPb₃Sb₅S₁₂	Orth. mmm (2/m 2/m 2/m) : Pmmm
Ustarasite	Pb(Bi,Sb)₆S₁₀ (?)
Vikingite	Ag₅Pb₈Bi₁₃S₃₀	Mon. 2/m : B2/m
Xilingolite	Pb₃Bi₂S₆	Mon.

Related Minerals - Strunz-mindat Grouping Hide

2.JB.	Senandorite	AgPbSb₃S₆	Orth. mm2 : Pmn2₁
2.JB.	Chukotkaite	AgPb₇Sb₅S₁₅	Mon. 2/m : P2₁/b
2.JB.	Arsenquatrandorite	Ag_17.6Pb_12.8Sb_38.1As_11.5S₉₆	Mon. 2/m : P2₁/b
2.JB.	Clino-oscarkempffite	Ag₁₅Pb₆Sb₂₁Bi₁₈S₇₂	Mon. 2/m : P2₁/b
2.JB.	Andreadiniite	CuHgAg₇Pb₇Sb₂₄S₄₈	Mon. 2/m : P2₁/b
2.JB.	Ginelfite	Ag₂(Ag_0.5Fe)TlPb_23.5(Sb,As)_33.5S₇₆	Tric. 1 : P1
2.JB.	Lazerckerite	Ag_3.75Pb_4.50(Sb_7.75Bi₄)S₂₄	Mon. 2/m
2.JB.	Lasmanisite	Ag₁₂Pb₁₃Mn₁₁Sb₄₄S₉₆	Orth. 2 2 2 : P2₁ 2₁ 2₁
2.JB.	Montpelvouxite	AgPb₁₆Sb₂₇As₁₈S₈₄	Tric. 1 : P1
2.JB.	Selenojunoite	Cu₂Pb₃Bi₈Se₁₆	Mon. 2/m : B2/m
2.JB.05	Diaphorite	Ag₃Pb₂Sb₃S₈	Mon. 2/m : P2₁/b
2.JB.10	Cosalite	Pb₂Bi₂S₅	Orth. mmm (2/m 2/m 2/m)
2.JB.15	Freieslebenite	AgPbSbS₃	Mon. 2/m : P2₁/b
2.JB.15	Marrite	AgPbAsS₃	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.25a	Junoite	Cu₂Pb₃Bi₈(S,Se)₁₆	Mon. 2/m : B2/m
2.JB.25i	Neyite	Ag₂Cu₆Pb₂₅Bi₂₆S₆₈	Mon. 2/m : B2/m
2.JB.25c	Nordströmite	CuPb₃Bi₇(Se₄S₁₀)	Mon. 2/m : P2₁/m
2.JB.25g	Nuffieldite	Cu_1.4Pb_2.4Bi_2.4Sb_0.2S₇	Orth. mmm (2/m 2/m 2/m)
2.JB.25d	Proudite	CuPb_7.5Bi_9.33(S,Se)₂₂	Mon. 2/m : B2/m
2.JB.25h	Weibullite	Pb₅Bi₈Se₇S₁₁	Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.25b	Felbertalite	Cu₂Pb₆Bi₈S₁₉	Mon. 2/m : B2/m
2.JB.25j	Rouxelite	Cu₂HgPb₂₃Sb₂₇S_65.5	Mon. 2/m : B2/m
2.JB.25f	Ángelaite	Cu₂AgPbBiS₄	Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.25i	Cuproneyite	Cu₇Pb₂₇Bi₂₅S₆₈	Mon. 2/m : B2/m
2.JB.30a	Geocronite	Pb₁₄Sb₆S₂₃	Mon. 2/m : P2₁/m
2.JB.30a	Jordanite	Pb₁₄As₆S₂₃	Mon. 2/m : P2₁/m
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.30a	Arsenmarcobaldiite	Pb₁₂(As_3.2Sb_2.8)_Σ6S₂₁	Tric. 1 : P1
2.JB.35c	Pillaite	Pb₉Sb₁₀S₂₃ClO_0.5	Mon. 2/m : B2/m
2.JB.35a	Zinkenite	Pb₉Sb₂₂S₄₂	Hex. 6 : P6₃
2.JB.35b	Scainiite	Pb₁₄Sb₃₀S₅₄O₅	Mon. 2/m : B2/m
2.JB.35d	Pellouxite	(Cu,Ag)Pb₁₀Sb₁₂S₂₇O(Cl,S)_0.6	Mon. 2/m : B2/m
2.JB.35f	Tubulite	Ag₂Pb₂₂Sb₂₀S₅₃	Mon. m : Pb
2.JB.35e	Chovanite	Pb_15-2xSb_14+2xS₃₆O_x (x ~ 0.2)	Mon. 2/m : B2/m
2.JB.40b	Aschamalmite	Pb_6-3xBi_2+xS₉	Mon. 2/m : B2/m
2.JB.40a	Bursaite	Pb₅Bi₄S₁₁ (?)	Orth.
2.JB.40b	Eskimoite	Ag₇Pb₁₀Bi₁₅S₃₆	Mon.
2.JB.40a	Fizélyite	Ag₅Pb₁₄Sb₂₁S₄₈	Mon. 2/m
2.JB.40a	Gustavite	AgPbBi₃S₆	Orth. mmm (2/m 2/m 2/m)
2.JB.40a	Lillianite	Pb_3-2xAg_xBi_2+xS₆	Orth. mmm (2/m 2/m 2/m)
2.JB.40c	Ourayite	Ag₃Pb₄Bi₅S₁₃	Orth.
2.JB.40a	Ramdohrite	Pb_5.9Fe_0.1Mn_0.1In_0.1Cd_0.2Ag_2.8Sb_10.8S₂₄	Mon. 2/m
2.JB.40a	Roshchinite	Ag₁₉Pb₁₀Sb₅₁S₉₆	Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.40d	Schirmerite	PbAgBi₃S₆ - Pb₃Ag_1.5Bi_3.5S₉	Orth.
2.JB.40a	Treasurite	Ag₇Pb₆Bi₁₅S₃₂	Mon.
2.JB.40a	Uchucchacuaite	AgMnPb₃Sb₅S₁₂	Orth. mmm (2/m 2/m 2/m) : Pmmm
2.JB.40e	Ustarasite	Pb(Bi,Sb)₆S₁₀ (?)
2.JB.40a	Vikingite	Ag₅Pb₈Bi₁₃S₃₀	Mon. 2/m : B2/m
2.JB.40a	Xilingolite	Pb₃Bi₂S₆	Mon.
2.JB.40b	Heyrovskýite	Pb₆Bi₂S₉	Orth. mmm (2/m 2/m 2/m) : Cccm
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	Quatrandorite	AgPbSb₃S₆	Mon. 2/m : P2₁/b
2.JB.40a	Menchettiite	AgPb_2.40Mn_1.60Sb₃As₂S₁₂	Mon. 2/m : P2₁/b
2.JB.40a	Terrywallaceite	AgPb(Sb,Bi)₃S₆	Mon. 2/m : P2₁/b
2.JB.40a	Jasrouxite	Ag₁₆Pb₄(Sb₂₄As₁₆)S₇₂	Tric. 1 : P1
2.JB.40a	Erzwiesite	Ag₈Pb₁₂Bi₁₆S₄₀	Orth. mmm (2/m 2/m 2/m) : Cmcm
2.JB.40a	Staročeskéite	Ag_0.70Pb_1.60(Bi_1.35Sb_1.35)_Σ2.70S₆	Orth. mmm (2/m 2/m 2/m) : Cmcm
2.JB.40a	Oyonite	Ag₃Mn₂Pb₄Sb₇As₄S₂₄	Mon. 2/m
2.JB.40a	Holubite	Ag₃Pb₆(Sb₈Bi₃)S₂₄	Mon. 2/m
2.JB.40b	Baiamareite	Ag₄Pb₁₂Fe₄Sb₂₀S₄₈	Mon. 2/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 OscarkempffiteHide

mindat.org URL:

https://www.mindat.org/min-41958.html
Please feel free to link to this page.

Search Engines:

Look for Oscarkempffite on Google

Look for Oscarkempffite images on Google

Look for Oscarkempffite on Bing

Look for Oscarkempffite images on Bing

Look for Oscarkempffite on DuckDuckGo

Look for Oscarkempffite images on DuckDuckGo

Look for Oscarkempffite in the Rock H. Currier Digital Library

External Links:

Look for Oscarkempffite on Webmineral

Look for Oscarkempffite on Wikipedia

Look for Oscarkempffite on Mineralien Atlas

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:

Fine Minerals from Weinrich Minerals, Inc.

Blue Gems Australian & International

High-end worldwide specimens & outstanding customer service

Buy from David K Joyce minerals

The Arkenstone - Fine Minerals

Buy rare minerals from Excalibur Minerals

Buy from McDougall Minerals

Wilensky Exquisite Minerals

References for OscarkempffiteHide

Reference List:

Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2011) New minerals and nomenclature modifications approved in 2011, CNMNC Newsletter No. 10. Mineralogical Magazine, 75 (5) 2549-2561 doi:10.1180/minmag.2011.075.5.2549

boliviaminera.blogspot.com (n.d.) http://boliviaminera.blogspot.com/2011/07/oscarkempffita-nuevo-mineral-boliviano.html

(2023) Oscarkempffite. Handbook of Mineralogy. Mineralogical Society of America

Localities for OscarkempffiteHide

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.


Bolivia
Potosí Sud Chichas Province Atocha Municipality ⓘ Chocaya-Animas mining district (Animas-Chocaya mining district)	Cazorla Martínez et al. (2019)
ⓘ Ánimas Mine	Torró et al. (2019)
Colorada vein ⓘ 264 level (TL)	Williams et al. (2011) +1 other reference

Oscarkempffite