Log In
Krupkaite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Krupkaite
Krupka, Czech Republic
Formula:
CuPbBi3S6
Colour:
steel-grey
Lustre:
Metallic
Hardness:
3½ - 4
Specific Gravity:
6.98 (Calculated)
Crystal System:
Orthorhombic
Name:
Named for the town of Krupka, Czech Republic, near the type locality.
Unique Identifiers
Mindat ID:
2278
Long-form identifier:
mindat:1:1:2278:7
Similar Names
| Krupičkaite | A valid IMA mineral species | Cu6[AsO3(OH)]6 · 8H2O |
IMA Classification of Krupkaite
Approved
IMA Formula:
Cu1+Pb2+Bi3+3S2-6
Approval year:
1974
First published:
1974
Classification of Krupkaite
2.HB.05a
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
B : With Cu, Ag, Fe, Sn and Pb
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
B : With Cu, Ag, Fe, Sn and Pb
3.4.5.2
3 : SULFOSALTS
4 : ø = 3
3 : SULFOSALTS
4 : ø = 3
5.7.6
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
7 : Sulpharsenites etc. of Pb and other metals
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
7 : Sulpharsenites etc. of Pb and other metals
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Krp | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Krp | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Krupkaite
Metallic
Transparency:
Opaque
Colour:
Steel-grey
Streak:
Black
Hardness:
3½ - 4 on Mohs scale
Hardness:
VHN100=148 - 188 kg/mm2 - Vickers
Density:
6.98 g/cm3 (Calculated)
Optical Data of Krupkaite
Reflectivity:
| Wavelength | R1 (%) | R2 (%) |
|---|---|---|
| 400nm | 39.8% | 46.9% |
| 420nm | 40.0% | 46.7% |
| 440nm | 40.1% | 46.3% |
| 460nm | 40.2% | 46.2% |
| 480nm | 40.1% | 46.3% |
| 500nm | 39.9% | 46.5% |
| 520nm | 39.7% | 46.7% |
| 540nm | 39.4% | 46.9% |
| 560nm | 39.1% | 47.0% |
| 580nm | 38.9% | 46.9% |
| 600nm | 38.8% | 46.8% |
| 620nm | 38.6% | 46.5% |
| 640nm | 38.3% | 46.2% |
| 660nm | 38.0% | 45.8% |
| 680nm | 37.8% | 45.4% |
| 700nm | 37.5% | 44.8% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 47.0%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Grayish-white
Chemistry of Krupkaite
Mindat Formula:
CuPbBi3S6
Element Weights:
Elements listed:
Common Impurities:
Se
Crystallography of Krupkaite
Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Cell Parameters:
a = 11.200(9) Å, b = 11.560(9) Å, c = 4.0003(3) Å
Ratio:
a:b:c = 0.969 : 1 : 0.346
Unit Cell V:
517.93 ų (Calculated from Unit Cell)
Z:
2
Comment:
Space Group: P b21m
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0006081 | Krupkaite | Petricek V, Makovicky E (2006) Interpretation of selected structures of the bismuthinite - aikinite series as commensurately modulated structures The Canadian Mineralogist 44 189-206 |  | 2006 | synthetic | 0 | 293 |
| 0014750 | Krupkaite | Synecek V, Hybler J (1974) The crystal structures of krupkaite, CuPbBi3S6, and of gladite, CuPbBi5S9, and the classification of superstructures in the bismuthinite-aikinite group, Neues Jahrbuch fur Mineralogie, Monatshefte 1974 541-560 | 1974 | Krupka, Ore Mountains, NW-Bohemia | 0 | 293 | |
| 0005785 | Krupkaite | Topa D, Makovicky E, Balic-Zunic T (2002) The structural role of excess Cu and Pb in gladite and krupkaite based on new refinements of their structure The Canadian Mineralogist 40 1147-1159 | | 2002 | 0 | 293 | |
| 0005784 | Krupkaite | Topa D, Makovicky E, Balic-Zunic T (2002) The structural role of excess Cu and Pb in gladite and krupkaite based on new refinements of their structure The Canadian Mineralogist 40 1147-1159 | | 2002 | 0 | 293 | |
| 0005783 | Krupkaite | Topa D, Makovicky E, Balic-Zunic T (2002) The structural role of excess Cu and Pb in gladite and krupkaite based on new refinements of their structure The Canadian Mineralogist 40 1147-1159 | | 2002 | 0 | 293 | |
| 0005782 | Krupkaite | Topa D, Makovicky E, Balic-Zunic T (2002) The structural role of excess Cu and Pb in gladite and krupkaite based on new refinements of their structure The Canadian Mineralogist 40 1147-1159 | | 2002 | 0 | 293 | |
| 0000456 | Krupkaite | Mumme W G (1975) The crystal structure of krupkaite, CuPbBi3S6, from the Juno Mine at Tennant Creek, Northern Territory, Australia American Mineralogist 60 300-308 | | 1975 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.137 Å | (100) |
| 2.841 Å | (37) |
| 3.645 Å | (30) |
| 3.160 Å | (27) |
| 2.660 Å | (26) |
| 1.970 Å | (26) |
| 3.552 Å | (24) |
Geological Environment
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 Krupkaite
General Appearance of Type Material:
fibrous aggregates of parallel intergrowths
Place of Conservation of Type Material:
Charles University, Prague, Czech Republic, 14522.
Associated Minerals at Type Locality:
Synonyms of Krupkaite
Other Language Names for Krupkaite
Common Associates
Associations Based on Photo Data:
| 9 photos of Krupkaite associated with Quartz | SiO2 |
| 5 photos of Krupkaite associated with Fluorite | CaF2 |
| 4 photos of Krupkaite associated with Native Bismuth | Bi |
| 4 photos of Krupkaite associated with Friedrichite | Cu5Pb5Bi7S18 |
| 4 photos of Krupkaite associated with Gladite | CuPbBi5S9 |
| 4 photos of Krupkaite associated with Bismuthinite | Bi2S3 |
| 4 photos of Krupkaite associated with Pekoite | CuPbBi11S18 |
| 3 photos of Krupkaite associated with Lindströmite | Cu3Pb3Bi7S15 |
| 3 photos of Krupkaite associated with Hammarite | Cu2Pb2Bi4S9 |
| 2 photos of Krupkaite associated with Chalcopyrite | CuFeS2 |
Related Minerals - Strunz-mindat Grouping
| 2.HB. | Barikaite | Ag3Pb10(Sb8As11)S40 |
| 2.HB. | Carducciite | (Ag2Sb2)Pb12(As,Sb)16S40 |
| 2.HB. | Sardashtite | Ag9Cu2.5Pb41Sb36.5As7S112 |
| 2.HB. | Interliveingite | AgPb18As25S56 |
| 2.HB. | Reckibachite | Ag2Pb12As14Sb4S40 |
| 2.HB.05a | Salzburgite | Cu1.6Pb1.6Bi6.4S12 |
| 2.HB.05a | Hammarite | Cu2Pb2Bi4S9 |
| 2.HB.05c | Jaskólskiite | CuxPb2+x(Sb,Bi)2-xS5 (x ~ 0.15) |
| 2.HB.05 | 'UM1990-54-Se:BiCuPb' | CuPb(Ni,Co)0.3Bi3Se6 |
| 2.HB.05a | Aikinite | CuPbBiS3 |
| 2.HB.05a | Pekoite | CuPbBi11S18 |
| 2.HB.05a | Friedrichite | Cu5Pb5Bi7S18 |
| 2.HB.05b | Meneghinite | Pb13CuSb7S24 |
| 2.HB.05a | Paarite | Cu1.7Pb1.7Bi6.3S12 |
| 2.HB.05a | Lindströmite | Cu3Pb3Bi7S15 |
| 2.HB.05a | Emilite | Cu10.7Pb10.7Bi21.3S48 |
| 2.HB.05a | Gladite | CuPbBi5S9 |
| 2.HB.05 | 'UM2000-46-S:BiCuPb' | Cu0.33Pb0.33Bi7.67S12 |
| 2.HB.10b | Izoklakeite | Pb27(Cu,Fe,Ag)2(Sb,Bi)19S57 |
| 2.HB.10c | Eclarite | (Cu,Fe)Pb9Bi12S28 |
| 2.HB.10a | Tintinaite | Pb22Cu4(Sb,Bi)30S69 |
| 2.HB.10b | Giessenite | Pb27Cu2(Bi,Sb)19S57 |
| 2.HB.10a | Kobellite | Pb22Cu4(Bi,Sb)30S69 |
| 2.HB.15 | Jamesonite | Pb4FeSb6S14 |
| 2.HB.15 | Benavidesite | Pb4MnSb6S14 |
| 2.HB.20a | Nagyágite | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| 2.HB.20b | Buckhornite | AuPb2BiTe2S3 |
| 2.HB.20e | Luxembourgite | AgCuPbBi4Se8 |
| 2.HB.20b | Jaszczakite | [Bi3S3][AuS2] |
| 2.HB.20d | Berryite | Cu3Ag2Pb3Bi7S16 |
| 2.HB.20e | Watkinsonite | Cu2PbBi4(Se,S,Te)8 |
| 2.HB.20c | Museumite | [Pb2(Pb,Sb)2S8][(Te,Au)2] |
| 2.HB.20e | Litochlebite | Ag2PbBi4Se8 |
| 2.HB.25 | Meerschautite | (Ag,Cu)6Pb43-2xSb44+2xS112Ox (x ~0.5) |
Other Information
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 Krupkaite
mindat.org URL:
https://www.mindat.org/min-2278.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Krupkaite
Reference List:
Fleischer, Michael, Chao, G. Y., Cabri, L. J. (1975) New mineral names. American Mineralogist, 60 (7-8) 736-739
Mumme, W. G. (1975) The crystal structure of krupkaite, CuPbBi3S6, from the Juno Mine at Tennant Creek, Northern Territory, Australia. American Mineralogist, 60 (3-4) 300-308
Pring, Allan (1989) Structural disorder in aikinite and krupkaite. American Mineralogist, 74 (1-2) 250-255
Topa, D.; Makovicky, E.; Balic-Zunic, T. (2002) The structural role of excess Cu and Pb in gladite and krupkaite based on new refinements of their structure. The Canadian Mineralogist, 40 (4). 1147-1159 doi:10.2113/gscanmin.40.4.1147
Petříček, V., Makovicky, E. (2006) Interpretation of selected structures of the bismuthinite-aikinite series as commensurately modulated structures. The Canadian Mineralogist, 44 (1). 189-206 doi:10.2113/gscanmin.44.1.189
Topa, D., Petricek, V., Dusek, M., Makovicky, E., Balic-Zunic, T. (2008) Simultaneous refinement of two components of an exsolution intergrowth: Crystal structures of the lindströmite - krupkaite pair. The Canadian Mineralogist, 46 (2). 525-539 doi:10.3749/canmin.46.2.525
IZUMINO, Yuya, NAKASHIMA, Kazuo, NAGASHIMA, Mariko (2014) Cuprobismutite group minerals (cuprobismutite, hodrušhite, kupčíkite and padĕraite), other Bi–sulfosalts and Bi–tellurides from the Obari mine, Yamagata Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 109 (4) 177-190 doi:10.2465/jmps.140129
Localities for Krupkaite
Showing 116 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Argentina | |
| Brodtkorb (2002) |
| Brodtkorb (2002) +1 other reference |
| Testa et al. (2018) |
Australia | |
| Mumme (1975) |
| Anon (2013) |
| Mueller +3 other references |
Austria | |
| Niedermayr et al. (1995) |
| Paar et al. (1998) | |
| Pichler (2009) | |
| Niedermayr et al. (1995) |
| Paar et al. (1982) +1 other reference |
| Kolitsch et al. (2008) +1 other reference |
| Makovicky et al. (2010) |
| Topa et al. (2026) | |
| Putz (2011) |
| Bayerl (2004) |
| Thalhammer et al. (1989) |
| Mandarino (2002) +1 other reference | |
| Schachinger et al. (2017) |
Bolivia | |
| Karup-Møller (1977) |
Brazil | |
| Lopes et al. (2024) |
Bulgaria | |
| Cook et al. (2002) +1 other reference |
| Cook et al. (2002) |
| Cook et al. (2002) |
| Bogdanov et al. (2004) |
| Cook et al. (2002) |
| Cook et al. (2002) |
Canada | |
| Adex Mining |
| Jambor (1982) |
| Karup-Møller (1977) |
China | |
| Liu et al. (2020) |
| Zhenkuan Luo et al. (1992) |
| Yingchen Ren (1999) |
| 张中俭 et al. (2017) |
| Xiang-Ping et al. (2001) |
| Zhou et al. (2018) |
Czech Republic (TL) | |
| Zak et al. (1974) +1 other reference |
Germany | |
| Schwarzmeier et al. (2015) +2 other references |
| In the collection of Brent Thorne. ... |
| Wittern (2001) |
| Wittern (2001) |
| Schramm et al. (2023) | |
Greece | |
| |
| Voudouris et al. (2010, April) +1 other reference |
Hungary | |
| collector: László Tóth +1 other reference |
Iran | |
| Nezafatis (2006) |
Ireland | |
| Ixer et al. (1990) |
Italy | |
| Marchesini et al. (2025) |
Japan | |
| Matsubara et al. (2006) |
| Yokoro et al. (2010) |
| IZUMINO et al. (2013) +1 other reference | |
| Nakajima et al (1981) |
Kazakhstan | |
| Spiridonov (1982) |
| Efimov A.V. Bismuthian mineralisation ... |
Kosovo | |
| Mederski et al. (2021) |
| Mederski et al. (2021) | |
Morocco | |
| Ilmen et al. (2016) +1 other reference |
North Macedonia | |
| Serafimovski et al. (2013) +1 other reference |
Norway | |
| Husdal et al. (2020) |
| Rune S. Selbekk (2010) |
| Larsen et al. (2018) |
| Larsen et al. (2018) | |
Peru | |
| Crowley et al. (1997) |
| Hyrsl et al. (2003) +1 other reference | |
Poland | |
| Gołębiowska et al. (2006) |
| Pieczka et al. (2012) +3 other references |
Romania | |
| Cook et al. (2002) |
| Zajzon et al. (2012) +1 other reference | |
| Zajzon et al. (2015) | |
| Cook et al. (2002) |
| Ilinca (2006) | |
| Ciobanu et al. (2000) | |
| Cook et al. (2002) | |
| Cook et al. (2002) | |
| Cook et al. (2002) | |
| Cook et al. (2002) |
| Cook et al. (2004) |
| Buzatu et al. (2015) |
| Cook (1998) |
| Plotinskaya et al. (2009) +1 other reference |
Russia | |
| Rogov et al. (2023) |
| Rogov et al. (2023) | |
| Kovalev et al. (2019) |
Slovakia | |
| Ďuďa R. et al. (1993) |
| Mikuš et al. (2026) |
| Pršek J. (Kandid. dizert. práca) +1 other reference |
| Jeleň et al. (2012) |
| Macinsky et al. (1994) |
| Martin Števko-unpublished |
| Koděra et al. (1986) |
| Žák et al. (1981) | |
| Pršek J. (Kandid. dizert. práca) |
| Chovan M. |
| Ozdín et al. (1999) | |
| Ozdín D. (2003) | |
Sweden | |
| Canadian Mineralogist 25 |
Switzerland | |
| - (1993) |
| Stalder et al. (1998) |
| Locality description |
| Cuchet et al. (2016) |
| Cuchet et al. (2016) |
| Cuchet et al. (2016) | |
| Ansermet (2012) |
| Ansermet (2012) | |
UK | |
| Stanley et al. (1991) |
| Cooper et al. (1990) +1 other reference |
| Lowry et al. (1994) |
Ukraine | |
| |
USA | |
| Schumer (2017) |
| Mineral News: 16 (9) +2 other references |
| Eckel et al. (1997) |
| Zephyr Minerals Ltd. |
| Barrick Gold Corporation |
| Pring (1989) +1 other reference |
| Pring (1989) |
Uzbekistan | |
| Kovalenker et al. (2003) |
Quick NavTopAbout KrupkaiteUnique IdentifiersSimilar NamesIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Julcani Mine, Julcani mining district, Ccochaccasa District, Angaraes Province, Huancavelica, Peru