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Stannite Group

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Stannite
Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China
© Rob Lavinsky

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Formula:
A
 
2
DEX
 
4
A = Ag, Cu;
D = Cu, Ce, Fe, Hg, Zn;
E = As, Ge, In, Sb, Se, Sn
X = S, Se.
System:Tetragonal
Name:Named after the principal mineral of the group - stannite.


Nearly isostructural sulfide species sharing the I-42m and I-4 space groups; with a structure that is almost identical to that of the Sphalerite Group species. The general formula is A2DEX4 where A = Ag, Cu; D = Cu, Ce, Fe, Hg, Zn; E = As, Ge, In, Sb, Se, Sn and S; and X = S, Se. (Where both the A and D positions are occupied by Cu the formula is typically written A3DX4; but using the formula as stated above clarifies the structural position of Cu in the D position.) [Note: Dana 8th classifies Famatinite, Luzonite, and Permingeatite as sulfosalts rather than as sulfides; but Fleischer's Glossary (1999) places them within the Stannite Group. An examination of their reported characteristics suggest the latter to be the better classification.]

A subgroup is the Kesterite Subgroup.

Classification of Stannite Group

Dana 7th edition ID:2.9.1.0
mindat.org URL:http://www.mindat.org/min-9259.html
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Crystallography of Stannite Group

Crystal System:Tetragonal

Chemical Properties of Stannite Group

Formula:
A
 
2
DEX
 
4


A = Ag, Cu;
D = Cu, Ce, Fe, Hg, Zn;
E = As, Ge, In, Sb, Se, Sn
X = S, Se.

Relationship of Stannite Group to other Species

Group Members:
Briartite
Cu
 
2
(Fe,Zn)GeS
 
4
Famatinite
Cu
 
3
SbS
 
4
Ferrokesterite
Cu
 
2
(Fe,Zn)SnS
 
4
Hocartite
Ag
 
2
(Fe
2+
 
,Zn)SnS
 
4
Kesterite
Cu
 
2
(Zn,Fe)SnS
 
4
Kesterite Subgroup
Kuramite
Cu
 
3
SnS
 
4
Luzonite
Cu
 
3
AsS
 
4
Permingeatite
Cu
 
3
SbSe
 
4
Pirquitasite
Ag
 
2
ZnSnS
 
4
Sakuraiite
(Cu,Zn,Fe)
 
3
(In,Sn)S
 
4
Stannite
Cu
 
2
(Fe,Zn)SnS
 
4
Velikite
(Cu,Hg)
 
11
Sn
 
4
S
 
16
Related Minerals - Dana Grouping):

- +
2.9.1.1Chalcopyrite
CuFeS
 
2

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.

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    • Localities for Stannite Group

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    Locality Updated: Dow Chemical Company Clay Pit, Midland Co., Michigan, USAFrom Paul Brandes, 12th Feb 2012 03:07:02