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Tsnigriite

Formula:
Ag
 
9
SbTe
 
3
(S,Se)
 
3
System:MonoclinicColour:Grey
Hardness:3½
Name:Named after the acronym TSNIGRI from the Russian name for the Central Scientific Research Institute of Geological Prospecting (Moscow).
This page provides mineralogical data about Tsnigriite.

Classification of Tsnigriite

IMA status:Approved 1991
Strunz 8th edition ID:2/B.05-75
Nickel-Strunz 10th (pending) edition ID:2.LA.55

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
L : Unclassified Sulfosalts
A : Without essential Pb
Dana 8th edition ID:3.1.12.1

3 : SULFOSALTS
1 : ø > 4
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Type Occurrence of Tsnigriite

Type Locality:Vysokovol'tnoye (Vysokovoltnoye) Ag-Au deposit, Bel'tau Mts, Central Kyzylkum Region, Kyzylkum Desert, Uzbekistan
Year of Discovery:1992

Physical Properties of Tsnigriite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Grey
Hardness (Mohs):3½

Crystallography of Tsnigriite

Crystal System:Monoclinic
Cell Parameters:a = 8.89Å, b = 8.29Å, c = 19.5Å
β = 97.02°
Ratio:a:b:c = 1.072 : 1 : 2.352
Unit Cell Volume:V 1,426.34 ų (Calculated from Unit Cell)

Chemical Properties of Tsnigriite

Formula:
Ag
 
9
SbTe
 
3
(S,Se)
 
3
Essential elements:Ag, S, Sb, Te
All elements listed in formula:Ag, S, Sb, Se, Te
Common Impurities:Cu,Pb,As,Bi

Relationship of Tsnigriite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.LA.10Dervillite
Ag
 
2
AsS
 
2
2.LA.15Daomanite
CuPtAsS
 
2
2.LA.20Vaughanite
TlHgSb
 
4
S
 
7
2.LA.25Criddleite
TlAg
 
2
Au
 
3
Sb
 
10
S
 
10
2.LA.30Fettelite
Ag
 
24
HgAs
 
5
S
 
20
2.LA.35Chaméanite
(Cu,Fe)
 
4
As(Se,S)
 
4
2.LA.40Arcubisite
Ag
 
6
CuBiS
 
4
2.LA.45Mgriite
Cu
 
3
AsSe
 
3
2.LA.50Benleonardite
Ag
 
8
(Sb,As)Te
 
2
S
 
3
2.LA.60Borovskite
Pd
 
3
SbTe
 
4
2.LA.65Jonassonite
AuBi
 
5
S
 
4

Other Names for Tsnigriite

Synonyms:
IMA1991-051
Other Languages:
German:Tsnigriit
Spanish:Tsnigriita

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 Tsnigriite

Reference List:Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1992): 121(5): 95-101.

American Mineralogist (1994): 79: 389-390.

New Minerals (1997), New Minerals 1990-1994.

Internet Links for Tsnigriite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Tsnigriite in the Natural History Museum (London) online catalogue
  • Tsnigriite details from Handbook of Mineralogy (PDF)
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    Localities for Tsnigriite

    (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.
    India
     
    • Rajasthan (Rajputana)
      • Udaipur Division
        • Udaipur District
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Uzbekistan
     
    • Kyzylkum Desert
      • Central Kyzylkum Region
        • Bel'tau Mts
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Mineral and/or Locality
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