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Hocartite

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Formula:
Ag2(Fe2+,Zn)SnS4
Colour:
Brownish-grey
Lustre:
Metallic
Hardness:
4
Specific Gravity:
4.77 (Calculated)
Crystal System:
Tetragonal
Member of:
Name:
After Raymond Hocart (1896-1983), Professor of Mineralogy, University of Paris, France.
Hide all sections | Show all sections

Classification of HocartiteHide

Approved
Approval Year:
1967
2/C.06-110
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.
2.9.2.6

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1
6.1.16

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

Physical Properties of HocartiteHide

Metallic
Transparency:
Opaque
Colour:
Brownish-grey
Hardness:
Hardness:
VHN25=209 - 234 kg/mm2 - Vickers
Hardness Data:
Measured
Density:
4.77 g/cm3 (Calculated)

Optical Data of HocartiteHide

Type:
Uniaxial (-)
Type:
Anisotropic
Anisotropism:
distinct orangish to greenish
Reflectivity:
400nmR1=27.0%R2=27.7%
420nmR1=26.5%R2=27.2%
440nmR1=26.0%R2=26.7%
460nmR1=25.5%R2=26.3%
480nmR1=25.2%R2=26.0%
500nmR1=24.8%R2=25.7%
520nmR1=24.7%R2=25.5%
540nmR1=24.5%R2=25.4%
560nmR1=24.4%R2=25.3%
580nmR1=24.5%R2=25.4%
600nmR1=24.6%R2=25.5%
620nmR1=24.8%R2=25.6%
640nmR1=25.2%R2=25.2%
660nmR1=25.4%R2=24.8%
680nmR1=24.8%R2=24.4%
700nmR1=23.7%R2=24.5%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 27.7%.
R1 shown in black, R2 shown in red
Colour in reflected light:
brownish grey
Pleochroism:
Weak
Comments:
gray brown to violet gray

Chemical Properties of HocartiteHide

Formula:
Ag2(Fe2+,Zn)SnS4
IMA Formula:
Ag2FeSnS4
Idealised Formula:
Ag2Fe2+SnS4
Common Impurities:
Zn,Cu

Crystallography of HocartiteHide

Crystal System:
Tetragonal
Class (H-M):
4 2m - Scalenohedral
Space Group:
I4 2m
Cell Parameters:
a = 5.74(3) Å, c = 10.96(5) Å
Ratio:
a:c = 1 : 1.909
Unit Cell V:
361.11 ų
Z:
2
Morphology:
Grains less than 1mm in diameter, also intergrowths.
Twinning:
Polysynthetic twinning common.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.26 (100)
1.98 (80)
1.72 (70)
2.03 (50)
2.87 (40)
2.74 (30)
1.666 (30)
Comments:
From Tacama, Bolivia

Type Occurrence of HocartiteHide

General Appearance of Type Material:
grains and inclusions in sphalerite and wurtzite
Place of Conservation of Type Material:
National School of Mines, Paris, France.
Geological Setting of Type Material:
In hydrothermal tin veins
Associated Minerals at Type Locality:

Synonyms of HocartiteHide

Other Language Names for HocartiteHide

German:Hocartit
Simplified Chinese:银黄锡矿
Spanish:Hocartita

Relationship of Hocartite to other SpeciesHide

Member of:
Other Members of this group:
BriartiteCu2(Fe,Zn)GeS4Tet.
ČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
FamatiniteCu3SbS4Tet. 4 2m : I4 2m
FerrokesteriteCu2(Fe,Zn)SnS4Tet. 4 : I4
Ge-stannoiditeCu8Fe2ZnGe2S12
Kesterite Cu2ZnSnS4Tet. 4 : I4
KeutschiteCu2AgAsS4Tet. 4 2m : I4 2m
KuramiteCu3SnS4Tet.
LuzoniteCu3AsS4Tet. 4 2m : I4 2m
OmariniiteCu8Fe2ZnGe2S12Orth. 2 2 2 : I2 2 2
PermingeatiteCu3SbSe4Tet.
Petrukite(Cu,Fe,Zn,Ag)3(Sn,In)S4Orth.
PirquitasiteAg2ZnSnS4Tet. 4 : I4
StanniteCu2FeSnS4Tet. 4 2m : I4 2m
StannoiditeCu+6Cu2+2(Fe2+,Zn)3Sn2S12Orth.
Unnamed (Cu-Zn-In Sulphide)CuZn2InS4
VelikiteCu2HgSnS4Tet.
ZincobriartiteCu2(Zn,Fe)(Ge,Ga)S4Tet. 4 2m : I4 2m
Forms a series with:

Related Minerals - Nickel-Strunz GroupingHide

2.CB.AgmantiniteAg2MnSnS4Orth.
2.CB.05aColoradoiteHgTeIso. m3m (4/m 3 2/m)
2.CB.05aHawleyiteCdSIso. 4 3m : F4 3m
2.CB.05aMetacinnabarHgSIso. 4 3m : F4 3m
2.CB.05cPolhemusite(Zn,Hg)STet.
2.CB.05bSakuraiite(Cu,Zn,Fe)3(In,Sn)S4 Iso.
2.CB.05aSphaleriteZnSIso. 4 3m : F4 3m
2.CB.05aStilleiteZnSe
2.CB.05aTiemanniteHgSe
2.CB.05UM1998-15-S:CuFeZnCu2Fe3Zn5S10
2.CB.05aRudashevskyite(Fe,Zn)SIso. 4 3m : F4 3m
2.CB.10aChalcopyriteCuFeS2Tet. 4 2m : I4 2d
2.CB.10aEskeborniteCuFeSe2Tet.
2.CB.10aGalliteCuGaS2Tet. 4 2m : I4 2d
2.CB.10bHaycockiteCu4Fe5S8Orth. 2 2 2
2.CB.10aLenaiteAgFeS2Tet. 4 2m : I4 2d
2.CB.10bMooihoekiteCu9Fe9S16Tet.
2.CB.10bPutoraniteCu1.1Fe1.2S2Iso.
2.CB.10aRoquesiteCuInS2Tet. 4 2m : I4 2d
2.CB.10bTalnakhiteCu9(Fe,Ni)8S16Iso. 4 3m : I4 3m
2.CB.10aLaforêtiteAgInS2Tet. 4 2m : I4 2d
2.CB.15aČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
2.CB.15aFerrokesteriteCu2(Fe,Zn)SnS4Tet. 4 : I4
2.CB.15aIdaiteCu5FeS6Hex.
2.CB.15aKesterite Cu2ZnSnS4Tet. 4 : I4
2.CB.15aKuramiteCu3SnS4Tet.
2.CB.15bMohiteCu2SnS3Mon.
2.CB.15aPirquitasiteAg2ZnSnS4Tet. 4 : I4
2.CB.15aStanniteCu2FeSnS4Tet. 4 2m : I4 2m
2.CB.15cStannoiditeCu+6Cu2+2(Fe2+,Zn)3Sn2S12Orth.
2.CB.15aVelikiteCu2HgSnS4Tet.
2.CB.15cUM2006-11-S:CuFeGeZnCu8(Fe,Zn)3Ge2S12 (?)
2.CB.20ChatkaliteCu6FeSn2S8Tet. 4 2m : P4m2
2.CB.20MawsoniteCu6Fe2SnS8Tet. 4 2m : P4m2
2.CB.30ColusiteCu12VAs3S16Iso. 4 3m : P4 3n
2.CB.30GermaniteCu13Fe2Ge2S16Iso. 4 3m : P4 3n
2.CB.30GermanocolusiteCu26V2(Ge,As)6S32Iso.
2.CB.30NekrasoviteCu26V2(Sn,As,Sb)6S32Iso.
2.CB.30StibiocolusiteCu13V(Sb,Sn,As)3S16Iso.
2.CB.30Ovamboite Cu20(Fe,Cu,Zn)6W2Ge6S32Iso.
2.CB.30MaikainiteCu20(Fe,Cu)6Mo2Ge6S32
2.CB.35aHemusiteCu6SnMoS8Iso.
2.CB.35aKiddcreekiteCu6SnWS8Iso. 4 3m : F4 3m
2.CB.35aPolkovicite(Fe,Pb)3(Ge,Fe)1-xS4Iso.
2.CB.35aRenierite(Cu1+,Zn)11Fe4(Ge4+,As5+)2S16Tet. 4 2m : P4 2c
2.CB.35aVincienniteCu+7Cu2+3Fe2+2Fe3+2Sn(As,Sb)S16Tet.
2.CB.35aMorozeviczite(Pb,Fe)3Ge1-xS4Iso.
2.CB.35bCatamarcaiteCu6GeWS8Hex. 6mm : P63mc
2.CB.40LautiteCuAsSOrth. mmm (2/m 2/m 2/m) : Pnma
2.CB.45CadmoseliteCdSeHex. 6mm : P63mc
2.CB.45GreenockiteCdSHex. 6mm : P63mc
2.CB.45Wurtzite(Zn,Fe)SHex. 6mm : P63mc
2.CB.45RambergiteMnSHex. 6mm : P63mc
2.CB.45Buseckite(Fe,Zn,Mn)SHex. 6mm : P63mc
2.CB.55aCubaniteCuFe2S3Orth. mmm (2/m 2/m 2/m)
2.CB.55bIsocubaniteCuFe2S3Iso. m3m (4/m 3 2/m) : Fm3m
2.CB.60PicotpauliteTlFe2S3Orth. mmm (2/m 2/m 2/m) : Cmcm
2.CB.60RaguiniteTlFeS2Orth.
2.CB.65ArgentopyriteAgFe2S3Mon. 2/m
2.CB.65SternbergiteAgFe2S3Orth. mmm (2/m 2/m 2/m)
2.CB.70SulvaniteCu3VS4Iso.
2.CB.75VulcaniteCuTeOrth.
2.CB.80EmpressiteAgTeOrth. mmm (2/m 2/m 2/m)
2.CB.85MuthmanniteAuAgTe2Mon. 2/m : P2/m

Related Minerals - Dana Grouping (8th Ed.)Hide

2.9.2.1StanniteCu2FeSnS4Tet. 4 2m : I4 2m
2.9.2.2ČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
2.9.2.3BriartiteCu2(Fe,Zn)GeS4Tet.
2.9.2.4KuramiteCu3SnS4Tet.
2.9.2.5Sakuraiite(Cu,Zn,Fe)3(In,Sn)S4 Iso.
2.9.2.7PirquitasiteAg2ZnSnS4Tet. 4 : I4
2.9.2.8VelikiteCu2HgSnS4Tet.
2.9.2.9Kesterite Cu2ZnSnS4Tet. 4 : I4
2.9.2.10FerrokesteriteCu2(Fe,Zn)SnS4Tet. 4 : I4

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

6.1.1KuramiteCu3SnS4Tet.
6.1.2MohiteCu2SnS3Mon.
6.1.3VelikiteCu2HgSnS4Tet.
6.1.4HemusiteCu6SnMoS8Iso.
6.1.5KiddcreekiteCu6SnWS8Iso. 4 3m : F4 3m
6.1.6StanniteCu2FeSnS4Tet. 4 2m : I4 2m
6.1.7RhodostanniteCu2FeSn3S8Tet. 4/m : I41/a
6.1.8MawsoniteCu6Fe2SnS8Tet. 4 2m : P4m2
6.1.9ChatkaliteCu6FeSn2S8Tet. 4 2m : P4m2
6.1.10FerrokesteriteCu2(Fe,Zn)SnS4Tet. 4 : I4
6.1.11Kesterite Cu2ZnSnS4Tet. 4 : I4
6.1.12StannoiditeCu+6Cu2+2(Fe2+,Zn)3Sn2S12Orth.
6.1.13ČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
6.1.14VincienniteCu+7Cu2+3Fe2+2Fe3+2Sn(As,Sb)S16Tet.
6.1.15PirquitasiteAg2ZnSnS4Tet. 4 : I4
6.1.17Teallite(Pb,Sn)SnS2Orth. mmm (2/m 2/m 2/m) : Pnma
6.1.18FranckeiteFe2+(Pb,Sn2+)6Sn4+2Sb2S14Tric. 1 : P1
6.1.19LévyclauditePb8Sn7Cu3(Bi,Sb)3S28
6.1.20CylindritePb3Sn4FeSb2S14Tric. 1 : P1
6.1.21PotosíitePb6Sn3FeSb3S16Tric.
6.1.22Sakuraiite(Cu,Zn,Fe)3(In,Sn)S4 Iso.
6.1.23Petrukite(Cu,Fe,Zn,Ag)3(Sn,In)S4Orth.
6.1.24Incaite(Pb,Ag)4Sn4FeSb2S15Mon.

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.

References for HocartiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Caye R, Laurent Y, Picot P, Pierrot R, Lévy C (1968) La hocartite, Ag2SnFeS4, une nouvelle espèce minérale. Bulletin de la Société Française de Minéralogie et de Cristallographie 91, 383-387
Fleischer M (1969) New mineral names. American Mineralogist: 54, 573 (abs. ref. 1).

Internet Links for HocartiteHide

Localities for HocartiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Argentina
 
  • Jujuy
    • Rinconada Department
DE BRODTKORB, Milka K. Precious metaltellurides and other Te-bearing minerals in different paragenesis of Argentina: A review. Rev. Asoc. Geol. Argent. [online]. 2009, vol.64, n.3, pp. 365-372.; Paar, W. H., Putz, H., Topa, D., de Brodtkorb, M. K., & Sureda, R. J. (2005, January). Occurrence and paragenesis of tellurium in mineral deposits of Argentina. In Mineral Deposit Research: Meeting the Global Challenge (pp. 1419-1422). Springer Berlin Heidelberg.
Amer.Min.(2000) 85, 1066-1075
Paar, W. H. (2013): Pirquitasit - erstmals Kristalle aus Argentinien zu sehen. Mineralien-Welt 24 (3), 42-43 (in German).
Austria
 
  • Carinthia
    • Kreuzeck group
      • Kreuzeck area
Feitzinger, G., W. H. Paar, M. Tarkian, R. Reche, O. Weinzierl, W. Prochaska & H. Holzer (1995): Vein type Ag-(Au)-Pb, Zn, Cu-(W, Sn) mineralization in the Southern Kreuzeck Mountains, Carinthia Province, Austria. Mineralogy and Petrology 53: 307-332.
Pichler (2009)
Bolivia
 
  • La Paz Department
    • Inquisivi Province
      • Colquiri
unpublished COMIBOL analysis
  • Oruro Department
    • Cercado Province
      • Oruro City
Kempff, O., Paar, W.H., Tawackoli, S.: "Minerales de Bolivia", 115pp (La Paz, 2009); Pastor, M., Pastor, A., Torró, L., Martínez, Á., Artiaga, D., Torres, B., ... & Alfonso, P. (2015) The San José-Itos Mines, Oruro, Bolivia: Structure and Ag-Sn Mineralization. in Mineral Resources in a Sustainable World • 13th SGA Biennial Meeting 2015. Proceedings, Volume 1 pp 327-330
  • Potosí Department
    • Antonio Quijarro Province
      • Agua de Castilla
        • Porco
Kempff, O., Paar, W.H., Tawackoli, S.: "Minerales de Bolivia", 115pp (La Paz, 2009)
    • Chayanta Province
[MinRec 32:469]
    • Cornelio Saavedra Province
      • Machacamarca District (Colavi District)
Salomon Rivas y Federico Ahlfeld (1998) Los Minerales de Bolivia y sus Parajes. (Santa Cruz)
    • Sud Chichas Province
      • Atocha-Quechisla District
        • Chocaya-Animas (Animas-Chocaya)
[MinRec 32:461]
American Mineralogist: 54, 573
Kempff, O., Paar, W.H., Tawackoli, S.: "Minerales de Bolivia", 115pp (La Paz, 2009)
Kempff, O., Paar, W.H., Tawackoli, S.: "Minerales de Bolivia", 115pp (La Paz, 2009)
Salomon Rivas y Federico Ahlfeld (1998) Los Minerales de Bolivia y sus Parajes. (Santa Cruz)
China
 
  • Guangdong Province
    • Yunfu Prefecture
      • Yuncheng District
Weining Zhou (1994): Mineral Resources and Geology 8(4), 233-244
  • Guangxi Zhuang Autonomous Region
    • Hechi Prefecture
      • Nandan Co.
        • Dachang Sn-polymetallic ore field
Peng, Z., Watanabe, M., Hoshino, K., and Shibata, Y. (1999): Ore mineralogy of tin-polymetallic (Sn-Sb-Fe-Pb-Zn-Cu-Ag) ores in the Dachang tin field, Guangxi, China and their implications for the ore genesis. Neues Jahrbuch für Mineralogie, Abhandlungen 175(2), 125-151.
Peng, Z., Watanabe, M., Hoshino, K., and Shibata, Y. (1999): Ore mineralogy of tin-polymetallic (Sn-Sb-Fe-Pb-Zn-Cu-Ag) ores in the Dachang tin field, Guangxi, China and their implications for the ore genesis. Neues Jahrbuch für Mineralogie, Abhandlungen 175(2), 125-151.
  • Hunan Province
    • Chenzhou Prefecture
      • Guiyang Co.
        • Huangshaping Pb-Zn-polymetallic ore field
Weining Zhou (1994): Mineral Resources and Geology 8(4), 233-244
  • Jiangxi Province
    • Shangrao Prefecture
      • Wannian Co.
Leiming Xu, Hengyu Wu, Ge Bai, and Quanbo He (1993): Acta Mineralogica Sinica 13(3), 254-262; Leiming Xu, Ge Bai, and Quanbo He (1993): Mineral Deposits 12(2), 138-147
  • Yunnan Province
    • Honghe Autonomous Prefecture
      • Mengzi Co.
Xinpei Jiang (1994): Acta Petrologica et Mineralogica 13(5), 278-284
France
 
  • Auvergne-Rhône-Alpes
    • Cantal
      • Massiac
        • Molèdes
? Bull. Soc. fr. Min. Crist. (1968) 91, 383-387
Germany
 
  • Bavaria
    • Upper Palatinate
      • Leonberg
        • Pfaffenreuth
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
Japan
 
  • Hokkaido
    • Sapporo
      • Minami-ku
Kojima et al (1979) Kouzan Chishitsu, 29, 197-206.; Min. Jour. (Japan): 15:222-232.; Eijun Ohta (1991) Polymetallic Mineralization at the Toyoha Mine, Hokkaido, Japan. Mining Geology 41:279-295
  • Honshu Island
    • Chubu Region
      • Gifu Prefecture
        • Hida City
Nitta & Akiyama (1981) Kouzan Chishitsu Tokubetsugo, 10, 175-192.
Kyrgyzstan
 
  • Talas Oblast
    • Tallas Alatan
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Peru
 
  • Ancash Department
    • Bolognesi Province
      • Huallanca District
        • Huallanca
Econ Geol (1985) 80:416-478
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
[World of Stones 12:49]
      • Sarychev Range
G. N. Gamyanin et al. (2001) Geology of Ore Deposits, 43, 442–467; Mills S.J., Kartashov P.M., Gamyanin G.N., Whitfield P.S., Kern A., Guerault H., Kampf A.R., Raudsepp M. (2011) Fluorocronite, the natural analogue of β-PbF2, from the Saha Republic, Russian Federation. European Journal of Mineralogy, 23, 695-700.
Slovakia
 
  • Prešov Region
    • Prešov Co.
Duda et. all.,1981:Minerály severnej časti Slanských vrchov. Min.Slovca,Monografia 2,Bratislava, 98 p
USA
 
  • Arizona
    • Cochise Co.
      • Mule Mts
        • Warren District
[MinRec 24:421]
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 252; Graeme, R. (1993), Bisbee revisited, Min.Rec.: 24: 421-436.
  • Nevada
    • Lander Co.
      • Lewis District
NBMG Spec. Pub. 31 Minerals of Nevada
Mineral and/or Locality  
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