Kuramite (original) (raw)

A valid IMA mineral species

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About KuramiteHide

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Specific Gravity:

4.56 (Calculated)

Crystal System:

Tetragonal

Name:

Named in 1979 by V.A. Kovalenker, T.L. Evstigneeva, N.V. Troneva, and L.N. Vyal´sov for the Kuramin (Qurama) Mountains where the type locality is found.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:2291:6

0d4f68db-25fe-4db6-9cc4-777c405e5cbf

IMA Classification of KuramiteHide

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Type description reference:

Classification of KuramiteHide

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2.CB.15a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
B : With Zn, Fe, Cu, Ag, etc.

2.9.2.4

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1

6.1.1

6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
1 : Sulphostannates and other sulfides containing Sn

Mineral SymbolsHide

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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.

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

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Hardness:

VHN20=379 - 432 kg/mm2 - Vickers

Density:

4.56 g/cm3 (Calculated)

Optical Data of KuramiteHide

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Anisotropism:

Distinct, brown shades

Reflectivity:

Wavelength R1 R2
460nm 25.3% 25.2%
540nm 26.5% 28.7%
580nm 26.7% 29.5%
640nm 26.5% 28.0%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 29.5%.
R1 shown in black, R2 shown in red

Colour in reflected light:

Neutral gray

Chemistry of KuramiteHide

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Common Impurities:

Fe,Zn,In

Crystallography of KuramiteHide

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Crystal System:

Tetragonal

Class (H-M):

42_m_ - Scalenohedral

Cell Parameters:

a = 5.545(5) Å, c = 10.75(2) Å

Unit Cell V:

330.53 ų (Calculated from Unit Cell)

Crystal StructureHide

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ID Species Reference Link Year Locality Pressure (GPa) Temp (K)
0013950 Kuramite Chen X, Wada H, Sato A, Mieno M (1998) Synthesis, electrical conductivity, and crystal structure of Cu4Sn7S16 and structure refinement of Cu2SnS3 Journal of Solid State Chemistry 139 144-151 1998 synthetic 0 293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
3.13 Å (10)
1.914 Å (8)
1.640 Å (6)
1.108 Å (4)
1.244 Å (3)
2.70 Å (2)
1.044 Å (2)

Geological EnvironmentHide

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Type Occurrence of KuramiteHide

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General Appearance of Type Material:

Inclusions, 5-80 microns in diameter within goldfieldite.

Place of Conservation of Type Material:

  1. A. E. Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia.
  2. Institute of Ore Deposits (IGEM), Moscow, Russia.

Geological Setting of Type Material:

Associated Minerals at Type Locality:

Reference:

Kovalenker, V.A., Evstigneeva,T.L., Troneva, N.V., Vyal´sov, L.N. (1979) Kuramite, Cu3SnS4, a new mineral of the stannite group. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 108: 564-569.

Synonyms of KuramiteHide

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Other Language Names for KuramiteHide

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Relationship of Kuramite to other SpeciesHide

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Other Members of this group:

Briartite Cu2(Fe,Zn)GeS4 Tet.
Černýite Cu2(Cd,Zn,Fe)SnS4 Tet. 42_m_ : I_42_m
Famatinite Cu3SbS4 Tet. 42_m_ : I_42_m
Ferrokësterite Cu2FeSnS4 Tet. 4 : _I_4
Hocartite Ag2(Fe2+,Zn)SnS4 Tet. 42_m_ : I_42_m
Kësterite Cu2ZnSnS4 Tet. 4 : _I_4
Keutschite Cu2AgAsS4 Tet. 42_m_ : I_42_m
Luzonite Cu3AsS4 Tet. 42_m_ : I_42_m
Omariniite Cu8Fe2ZnGe2S12 Orth. 222 : _I_222
Permingeatite Cu3SbSe4 Tet. 42_m_ : I_42_m
Petrukite (Cu,Fe,Zn,Ag)3(Sn,In)S4 Orth. m _m_2 : P m _n_21
Pirquitasite Ag2ZnSnS4 Tet. 4 : _I_4
Richardsite Zn2CuGaS4 Tet. 42_m_ : I_42_m
Stannite Cu2FeSnS4 Tet. 42_m_ : I_42_m
Stannoidite Cu+6Cu2+2(Fe2+,Zn)3Sn2S12 Orth. 222 : _I_222
UM1984-30-S:CuFeSn Cu2Fe2Sn3S7
Unnamed (Cu-Zn-In Sulphide) CuZn2InS4
Velikite Cu2HgSnS4 Tet. 4 : _I_4
Zincobriartite Cu2(Zn,Fe)(Ge,Ga)S4 Tet. 42_m_ : I_42_m

Common AssociatesHide

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Associated Minerals Based on Photo Data:

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2.CB. Agmantinite Ag2MnSnS4 Orth.
2.CB. Richardsite Zn2CuGaS4 Tet. 42_m_ : I_42_m
2.CB. Gachingite Au(Te1-xSex) Orth. m m m _(_2/_m_2/_m_2/m )
2.CB. Tolstykhite Au3S4Te6 Tric. 1 : _P_1
2.CB. Hanswilkeite KFeS2 Mon. 2/m : _B_2/b
2.CB. Auroselenide AuSe Mon. 2/m : _B_2/m
2.CB. Ruizhongite (Ag2◻)Pb3Ge2S8 Iso. 43_m_ : I_43_d
2.CB. Okruginite Cu2SnSe3 Mon. m : B b
2.CB.05a Coloradoite HgTe Iso. 43_m_ : F_43_m
2.CB.05a Hawleyite CdS Iso. 43_m_ : F_43_m
2.CB.05a Metacinnabar HgS Iso. 43_m_ : F_43_m
2.CB.05c Polhemusite (Zn,Hg)S Tet.
2.CB.05b Sakuraiite (Cu,Zn,Fe)3(In,Sn)S4 Iso.
2.CB.05a Sphalerite ZnS Iso. 43_m_ : F_43_m
2.CB.05a Stilleite ZnSe Iso. 43_m_ : F_43_m
2.CB.05a Tiemannite HgSe Iso. 43_m_ : F_43_m
2.CB.05 UM1998-15-S:CuFeZn Cu2Fe3Zn5S10
2.CB.05a Rudashevskyite (Fe,Zn)S Iso. 43_m_ : F_43_m
2.CB.05a Ishiharaite (Cu,Ga,Fe,In,Zn)S Iso. 43_m_ : F_43_m
2.CB.07a Shenzhuangite NiFeS2 Tet. 42_m_ : I_42_d
2.CB.07a Unnamed (Cu-Mn-Sn Sulphide) Cu2MnSnS4
2.CB.10a Chalcopyrite CuFeS2 Tet. 42_m_ : I_42_d
2.CB.10a Eskebornite CuFeSe2 Tet. 42_m_ : P_42_c
2.CB.10a Gallite CuGaS2 Tet. 42_m_ : I_42_d
2.CB.10b Haycockite Cu4Fe5S8 Orth. 222
2.CB.10a Lenaite AgFeS2 Tet. 42_m_ : I_42_d
2.CB.10b Mooihoekite Cu9Fe9S16 Tet. 42_m_ : P_42_m
2.CB.10b Putoranite Cu1.1Fe1.2S2 Iso. m_3_m _(_4/_m_32/m ) : P n_3_m
2.CB.10a Roquesite CuInS2 Tet. 42_m_ : I_42_d
2.CB.10b Talnakhite Cu9(Fe,Ni)8S16 Iso. 43_m_ : I_43_m
2.CB.10a Laforêtite AgInS2 Tet. 42_m_ : I_42_d
2.CB.10a Unnamed (Cu-Zn-In Sulphide) CuZn2InS4
2.CB.10a UM1984-30-S:CuFeSn Cu2Fe2Sn3S7
2.CB.10c Omariniite Cu8Fe2ZnGe2S12 Orth. 222 : _I_222
2.CB.15a Černýite Cu2(Cd,Zn,Fe)SnS4 Tet. 42_m_ : I_42_m
2.CB.15a Ferrokësterite Cu2FeSnS4 Tet. 4 : _I_4
2.CB.15a Hocartite Ag2(Fe2+,Zn)SnS4 Tet. 42_m_ : I_42_m
2.CB.15a Idaite Cu5FeS6 Hex.
2.CB.15a Kësterite Cu2ZnSnS4 Tet. 4 : _I_4
2.CB.15b Mohite Cu2SnS3 Mon.
2.CB.15a Pirquitasite Ag2ZnSnS4 Tet. 4 : _I_4
2.CB.15a Stannite Cu2FeSnS4 Tet. 42_m_ : I_42_m
2.CB.15c Stannoidite Cu+6Cu2+2(Fe2+,Zn)3Sn2S12 Orth. 222 : _I_222
2.CB.15a Velikite Cu2HgSnS4 Tet. 4 : _I_4
2.CB.15c UM2006-11-S:CuFeGeZn Cu8(Fe,Zn)3Ge2S12 (?)
2.CB.17a v Arsenic-bearing Renierite Cu11GeAsFe4S16
2.CB.20 Chatkalite Cu6FeSn2S8 Tet. 42_m_ : _P_4_m_2
2.CB.20 Mawsonite Cu6Fe2SnS8 Tet. 42_m_ : _P_4_m_2
2.CB.30 Argyropyrite near Ag2Fe7S11
2.CB.30 Colusite Cu13VAs3S16 Iso. 43_m_ : P_43_n
2.CB.30 Germanite Cu13Fe2Ge2S16 Iso. 43_m_ : P_43_n
2.CB.30 Germanocolusite Cu26V2(Ge,As)6S32 Iso. 43_m_ : P_43_m
2.CB.30 Nekrasovite Cu26V2(Sn,As,Sb)6S32 Iso. 43_m_ : P_43_n
2.CB.30 Stibiocolusite Cu13V(Sb,Sn,As)3S16 Iso. 43_m_ : P_43_m
2.CB.30 Ovamboite Cu20(Fe,Cu,Zn)6W2Ge6S32 Iso. 43_m_ : P_43_n
2.CB.30 Maikainite Cu20(Fe,Cu)6Mo2Ge6S32 Iso. m_3_m _(_4/_m_32/m )
2.CB.30 Frieseite Ag2Fe5S8 (?)
2.CB.35a Hemusite Cu6SnMoS8 Iso.
2.CB.35a Kiddcreekite Cu6SnWS8 Iso. 43_m_ : F_43_m
2.CB.35a Polkovicite (Fe,Pb)3(Ge,Fe)1-xS4 Iso.
2.CB.35a Renierite (Cu1+,Zn)11Fe4(Ge4+,As5+)2S16 Tet. 42_m_ : P_42_c
2.CB.35a Vinciennite Cu+7Cu2+3Fe2+2Fe3+2Sn(As,Sb)S16 Tet.
2.CB.35a Morozeviczite (Pb,Fe)3Ge1-xS4 Iso.
2.CB.35b Catamarcaite Cu6GeWS8 Hex. 6_m_ m : P_63_m c
2.CB.40 Lautite CuAsS Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a
2.CB.42 Lingbaoite AgTe3 Trig. 3_m_ : R_3_m
2.CB.45 Cadmoselite CdSe Hex. 6_m_ m : P_63_m c
2.CB.45 Greenockite CdS Hex. 6_m_ m : P_63_m c
2.CB.45 Wurtzite (Zn,Fe)S Hex. 6_m_ m : P_63_m c
2.CB.45 Rambergite MnS Hex. 6_m_ m : P_63_m c
2.CB.45 Buseckite (Fe,Zn,Mn)S Hex. 6_m_ m : P_63_m c
2.CB.45 Maletoyvayamite Au3Se4Te6 Tric. 1 : _P_1
2.CB.47 Murchisite Cr5S6 Trig. 3_m_ _(_32/m ) : P_31_c
2.CB.50 Zincselenide ZnSe
2.CB.50 Wassonite TiS Trig. 3_m_ _(_32/m ) : R_3_m
2.CB.52 Dzhezkazganite ReMoCu2PbS6 ? Trig. 3_m_ : R_3_m
2.CB.55a Cubanite CuFe2S3 Orth. m m m _(_2/_m_2/_m_2/m )
2.CB.55b Isocubanite CuFe2S3 Iso. m_3_m _(_4/_m_32/m ) : F m_3_m
2.CB.60 Picotpaulite TlFe2S3 Orth. m m m _(_2/_m_2/_m_2/m ) : C m c m
2.CB.60 Raguinite TlFeS2 Orth.
2.CB.65 Argentopyrite AgFe2S3 Mon. 2/m
2.CB.65 Sternbergite AgFe2S3 Orth. m m m _(_2/_m_2/_m_2/m )
2.CB.70 Sulvanite Cu3VS4 Iso. 43_m_ : P_43_m
2.CB.75 Vulcanite CuTe Orth. m m m _(_2/_m_2/_m_2/m )
2.CB.80 Empressite AgTe Orth. m m m _(_2/_m_2/_m_2/m )
2.CB.85 Muthmannite AuAgTe2 Mon. 2/m : _P_2/m

Other InformationHide

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Health Risks:

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

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References for KuramiteHide

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Reference List:

Chen, Xue-an, Wada, Hiroaki, Sato, Akira, Mieno, Masahiro (1998) Synthesis, electrical conductivity, and crystal structure of Cu4Sn7S16 and structure refinement of Cu2SnS3. Journal of Solid State Chemistry, 139. 144-151 doi:10.1006/jssc.1998.7822

Localities for KuramiteHide

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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

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- 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.

Arctic Ocean
Norwegian Sea Mohns Ridge Loki’s Castle ? Olsen (2016)
Argentina
Catamarca Province Andalgalá Department Andalgalá Agua Rica Mine FRANCHINI (27º26'S-66º16'O)
Salta Province Los Andes department San Antonio de los Cobres Organullo mining district Julio Verne mine de Brodtkorb (2009) +2 other references
Chile
Coquimbo Elqui Province El Indio deposit Henley et al. (2012)
DR Congo
Haut-Katanga Kambove Territory ...
Greece
Eastern Macedonia and Thrace Evros Alexandroupoli Perama Hill deposit Voudouris et al. (2011)
Hungary
Heves County Pétervására District Recsk Lahóca Hill
Japan
Hokkaidō Prefecture Shiribeshi Subprefecture Suttsu mine CHIMIZU (1993)
UK
England Cornwall Treverbyn Stenalees Gunheath China Clay Pit Golley et al. (1995)
USA
Arizona Cochise County Bisbee Graeme (1993)
Campbell Mine Anthony et al. (1995)
Colorado San Juan County Anvil Mountain Zuni Mine Rocks & Minerals 71:2 pp94-101
Nevada Esmeralda County Goldfield Mining District Castor et al. (2004)
Nye County Cactus Range Cactus Springs Mining District Fairday Mine Castor et al. (2004)
Gold Crater Mining District Unnamed shaft (2) Castor et al. (2004)
Uzbekistan (TL)
Tashkent Region Ohangaron District Kockbulak mine (Kochbulak Au-Ag-Te deposit) (TL) Kovalenker et al. (1979) +3 other references