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Černýite

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Big Photo

Tanco Mine (Bernic Lake Mine), Bernic Lake, Lac-du-Bonnet area, Manitoba, Canada
© Brent Thorne 2011




Formula:
Cu
 
2
(Cd,Zn,Fe)SnS
 
4
System:TetragonalColour:Steel Grey
Hardness:4
Name:For Dr. Petr Cerny, University of Manitoba, Canada.


Stannite group.

Classification of Černýite

IMA status:Approved
Strunz 8th edition ID:2/C.06-90
Nickel-Strunz 10th (pending) edition ID: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.
Dana 8th edition ID:2.9.2.2

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1
Hey's CIM Ref.:6.1.13

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

Co-type Localities:Tanco Mine (Bernic Lake Mine), Bernic Lake, Lac-du-Bonnet area, Manitoba, Canada
Hugo Mine, Keystone, Keystone District, Pennington Co., South Dakota, USA
Place of Conservation of Type Material:Smithsonian
Geological Setting of type material:Pegmatite

Occurrences of Černýite

Geological Setting:Complex zoned pegmatites

Physical Properties of Černýite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Steel Grey
Streak:Black
Hardness (Mohs):4
Hardness (Vickers):VHN50=189 - 210 kg/mm2
Density (calculated):4.76 g/cm3

Crystallography of Černýite

Crystal System:Tetragonal
Class (H-M):4 2m - Scalenohedral
Space Group:I4 2m
Cell Parameters:a = 5.487Å, c = 10.828Å
Ratio:a:c = 1 : 1.973
Unit Cell Volume:V 326.00 ų (Calculated from Unit Cell)
Z:4
Morphology:Anhedral grains to 200 microns

Optical Data of Černýite

Type:Anisotropic
Anisotropism:Very weak in shades of gray

Chemical Properties of Černýite

Formula:
Cu
 
2
(Cd,Zn,Fe)SnS
 
4
Essential elements:Cd, Cu, S, Sn
All elements listed in formula:Cd, Cu, Fe, S, Sn, Zn

Relationship of Černýite to other Species

Common Associates:
StanniteSphaleritePyrrhotiteKesteriteHawleyite
ChalcopyriteBismuth
Related Minerals - Nickel-Strunz Grouping):

- +
2.CB.05aColoradoite
HgTe
2.CB.05aHawleyite
CdS
2.CB.05aMetacinnabar
HgS
2.CB.05cPolhemusite
(Zn,Hg)S
2.CB.05bSakuraiite
(Cu,Zn,Fe)
 
3
(In,Sn)S
 
4
2.CB.05aSphalerite
ZnS
2.CB.05aStilleite
ZnSe
2.CB.05aTiemannite
HgSe
2.CB.05UM1998-15-S:CuFeZn
Cu
 
2
Fe
 
3
Zn
 
5
S
 
10
2.CB.05aRudashevskyite
(Fe,Zn)S
2.CB.10aChalcopyrite
CuFeS
 
2
2.CB.10aEskebornite
CuFeSe
 
2
2.CB.10aGallite
CuGaS
 
2
2.CB.10bHaycockite
Cu
 
4
Fe
 
5
S
 
8
2.CB.10aLenaite
AgFeS
 
2
2.CB.10bMooihoekite
Cu
 
9
Fe
 
9
S
 
16
2.CB.10bPutoranite
Cu
 
9
(Fe,Ni)
 
9
S
 
16
2.CB.10aRoquesite
CuInS
 
2
2.CB.10bTalnakhite
Cu
 
9
(Fe,Ni)
 
8
S
 
16
2.CB.10aLaforêtite
AgInS
 
2
2.CB.15aFerrokesterite
Cu
 
2
(Fe,Zn)SnS
 
4
2.CB.15aHocartite
Ag
 
2
(Fe
2+
 
,Zn)SnS
 
4
2.CB.15aIdaite
Cu
 
5
FeS
 
6
2.CB.15aKesterite
Cu
 
2
(Zn,Fe)SnS
 
4
2.CB.15aKuramite
Cu
 
3
SnS
 
4
2.CB.15bMohite
Cu
 
2
SnS
 
3
2.CB.15aPirquitasite
Ag
 
2
ZnSnS
 
4
2.CB.15aStannite
Cu
 
2
(Fe,Zn)SnS
 
4
2.CB.15cStannoidite
Cu
+
6
Cu
2+
2
(Fe
2+
 
,Zn)
 
3
Sn
 
2
S
 
12
2.CB.15aVelikite
(Cu,Hg)
 
11
Sn
 
4
S
 
16
2.CB.15cUM2006-11-S:CuFeGeZn
Cu
 
8
(Fe,Zn)
 
3
Ge
 
2
S
 
12
 (?)
2.CB.20Chatkalite
Cu
 
6
FeSn
 
2
S
 
8
2.CB.20Mawsonite
Cu
 
6
Fe
 
2
SnS
 
8
2.CB.30Colusite
Cu
 
26
V
 
2
(As,Sn,Sb)
 
6
S
 
32
2.CB.30Germanite
Cu
 
13
Fe
 
2
Ge
 
2
S
 
16
2.CB.30Germanocolusite
Cu
 
26
V
 
2
(Ge,As)
 
6
S
 
32
2.CB.30Nekrasovite
Cu
 
26
V
 
2
(Sn,As,Sb)
 
6
S
 
32
2.CB.30Stibiocolusite
Cu
 
13
V
 
4
(Sb,Sn,As)
 
3
S
 
16
2.CB.30Ovamboite
Cu
 
20
(Fe,Cu,Zn)
 
6
W
 
2
Ge
 
6
S
 
32
2.CB.30Maikainite
Cu
 
20
(Fe,Cu)
 
6
Mo
 
2
Ge
 
6
S
 
32
2.CB.35aHemusite
Cu
 
6
SnMoS
 
8
2.CB.35aKiddcreekite
Cu
 
6
SnWS
 
8
2.CB.35aPolkovicite
(Fe,Pb)
 
3
(Ge,Fe)
 
1-x
S
 
4
2.CB.35aRenierite
(Cu,Zn)
 
11
(Ge,As)
 
2
Fe
 
4
S
 
16
2.CB.35aVinciennite
Cu
+
7
Cu
2+
3
Fe
2+
2
Fe
3+
2
Sn(As,Sb)S
 
16
2.CB.35aMorozeviczite
(Pb,Fe)
 
3
Ge
 
1-x
S
 
4
2.CB.35bCatamarcaite
Cu
 
6
GeWS
 
8
2.CB.40Lautite
CuAsS
2.CB.45Cadmoselite
CdSe
2.CB.45Greenockite
CdS
2.CB.45Wurtzite
(Zn,Fe)S
2.CB.45Rambergite
MnS
2.CB.45Buseckite
(Fe,Zn,Mn)S
2.CB.55aCubanite
CuFe
 
2
S
 
3
2.CB.55bIsocubanite
CuFe
 
2
S
 
3
2.CB.60Picotpaulite
TlFe
 
2
S
 
3
2.CB.60Raguinite
TlFeS
 
2
2.CB.65Argentopyrite
AgFe
 
2
S
 
3
2.CB.65Sternbergite
AgFe
 
2
S
 
3
2.CB.70Sulvanite
Cu
 
3
VS
 
4
2.CB.75Vulcanite
CuTe
2.CB.80Empressite
AgTe
2.CB.85Muthmannite
AuAgTe
 
2
Related Minerals - Hey's Index Grouping:

- +
6.1.1Kuramite
Cu
 
3
SnS
 
4
6.1.2Mohite
Cu
 
2
SnS
 
3
6.1.3Velikite
(Cu,Hg)
 
11
Sn
 
4
S
 
16
6.1.4Hemusite
Cu
 
6
SnMoS
 
8
6.1.5Kiddcreekite
Cu
 
6
SnWS
 
8
6.1.6Stannite
Cu
 
2
(Fe,Zn)SnS
 
4
6.1.7Rhodostannite
Cu
 
2
FeSn
 
3
S
 
8
6.1.8Mawsonite
Cu
 
6
Fe
 
2
SnS
 
8
6.1.9Chatkalite
Cu
 
6
FeSn
 
2
S
 
8
6.1.10Ferrokesterite
Cu
 
2
(Fe,Zn)SnS
 
4
6.1.11Kesterite
Cu
 
2
(Zn,Fe)SnS
 
4
6.1.12Stannoidite
Cu
+
6
Cu
2+
2
(Fe
2+
 
,Zn)
 
3
Sn
 
2
S
 
12
6.1.14Vinciennite
Cu
+
7
Cu
2+
3
Fe
2+
2
Fe
3+
2
Sn(As,Sb)S
 
16
6.1.15Pirquitasite
Ag
 
2
ZnSnS
 
4
6.1.16Hocartite
Ag
 
2
(Fe
2+
 
,Zn)SnS
 
4
6.1.17Teallite
(Pb,Sn)SnS
 
2
6.1.18Franckeite
Fe
2+
 
(Pb,Sn
2+
 
)
 
6
Sn
4+
2
Sb
 
2
S
 
14
6.1.19Lévyclaudite
Pb
 
8
Sn
 
7
Cu
 
3
(Bi,Sb)
 
3
S
 
28
6.1.20Cylindrite
Pb
 
3
Sn
 
4
FeSb
 
2
S
 
14
6.1.21Potosíite
Pb
 
6
Sn
 
3
FeSb
 
3
S
 
16
6.1.22Sakuraiite
(Cu,Zn,Fe)
 
3
(In,Sn)S
 
4
6.1.23Petrukite
(Cu,Fe,Zn,Ag)
 
3
(Sn,In)S
 
4
6.1.24Incaite
(Pb,Ag)
 
4
Sn
 
4
FeSb
 
2
S
 
15

Other Names for Černýite

Synonyms:
IMA1976-057
Other Languages:
German:Černýit
Russian:Черниит
Spanish:Černýita

Other Information

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

References for Černýite

Reference List:

- +
KISSIN, S.A., OWENS, D.R. & ROBERTS, W.L. (1978): Černýite, a copper B cadmium B tin sulfide with the stannite structure. Canadian Mineralogist 16, 139-146.
SZYMAŃSKI, J.T. (1978): The crystal structure of černýite, Cu2CdSnS4, a cadmium analogue of stannite. Canadian Mineralogist 16, 147-151.

Internet Links for Černýite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Černýite details from Handbook of Mineralogy (PDF)
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    • Localities for Černýite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Canada
     
    • Manitoba
      • Lac-du-Bonnet area
        • Bernic Lake
    		KISSIN, S.A., OWENS, D.R. & ROBERTS, W.L. (1978): Černýite, a copper B cadmium B tin sulfide with the stannite structure. Canadian Mineralogist 16, 139-146. SZYMAŃSKI, J.T. (1978): The crystal structure of černýite, Cu2CdSnS4, a cadmium analogue of stannite. Canadian Mineralogist 16, 147-151.
    Germany
     
    • Bavaria
      • Upper Palatinate
        • Oberpfälzer Wald
          • Waldsassen
            • Pfaffenreuth
    		Lapis, 10 (9), 13-20+50.
    Norway
     
    • Nordland
      • Hemnes
        • Bleikvassli
    		Cook, N.J., Spry, P.G., and Vokes, F.M. (1998): Mineralogy and textural relationships among sulphosalts and related minerals in the Bleikvassli Zn-Pb-(Cu) deposit, Nordland, Norway. Mineralium Deposita 34, 35-56
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Rudawy Janowickie Mts
        • Czarnów
          • Rędziny
    		Pieczka A., Gołębiowska B., Parafiniuk J. 2006: The stannite-group minerals from Rędziny (Lower Silesia, Poland). Mineralogia Polonica - Special Papers, vol. 28, 175 - 177
    Spain
     
    • Castile and Leon
      • Salamanca
    		Revista de minerales, 2000 (Mars), 260-263.
    • Extremadura
    		Y. Moëlo et al. : "Homologues de la lillianite (gustavite, vikingite, heyrovskyite riche en Ag et Bi, ...) de l'indice à W-As-(Pb, Bi, Ag) de la Roche-Balue (Loire-Atlantique, France)", Bull. Minéral., 1987, 110, pp 43-64.
    USA
     
    • South Dakota
      • Pennington Co.
        • Keystone District
          • Keystone
    		Can.Min.(1978) 16, 139-146; Am Min 64:653
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