Mineral Information and Data:

Baksanite
Bi6Te2S3 [CNMNC approved formula]

Named after the discovery locality: Tyrngauz deposit, Baksan River valley, northern Caucasus, Russia.

IMA status : Approved Species 1996 (IMA1992-042)
CLASSIFICATION 
Dana
(8th edition) :
03.01.13.01  
  (03) Sulfides - Sulfosalts
  (03.01) where z/y > 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.01.13)
  
Nickel-Strunz
(10th edition) :
02.DC.05e
  (02) Sulfides
  (02.D) Metal Sulfides, M:S = 3:4 and 2:3
  (02.DC) Variable M:S
  
Crystal system: Trigonal System
Point group (H-M): 3m (or 3 2/m) — hexagonal-scalenohedral
Unit cell: a = 4.249Å, c = 62.82Å
Crystal Habit: Granular, dropletlike and in spherical aggregates, to 13 mm.
  
Color: Steel-gray; in reflected light, bright whi
Diaphaneity: Opaque
Luster: Metallic
Hardness (Mohs): 1.5 - 2
Measured Density: 8.1 g/cm3
Cleavage: Perfect, on {0001}
Tenacity: Flexible, but not elastic.
Streak: Black
  
Geologic Setting: In altered magnetite–andradite skarn.
Mineral Association: Gold, bismuthinite, ingodite, joseite, andradite, calcite, chlorite, stilpnomelane.
  

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