Mineral Information and Data:

Atokite
Pd3Sn [CNMNC approved formula]

Named for its occurrence in the Atok mine, South Africa.

IMA status : Approved Species 1975 (IMA1974-041)
CLASSIFICATION 
Dana
(8th edition) :
01.02.05.03  
  (01) Native Elements
  (01.02) with platinum group metals and alloys
  (01.02.05) Isoferroplatinum group (Space Group Pm3m)
  
Nickel-Strunz
(10th edition) :
01.AG.10
  (01) Elements
  (01.A) Metals and Intermetallic Alloys
  (01.AG) PGE-metal alloys
  
Crystal system: Cubic System
Point group (H-M): m3m (or 4/m 3 2/m) — hexoctahedral
Space group: A = 3.991Å
Crystal Habit: As small grains, less than 100 μm in diameter, rarely showing {100}.
  
Color: Pale cream in polished section
Diaphaneity: Opaque.
Luster: Metallic
Measured Density: 14.19 (calculated) g/cm3
  
Geologic Setting: As very sparse grains in concentrates of ore (Merensky Reef, South Africa).
Mineral Association: Unspecified platinum tellurides (Merensky Reef, South Africa); keithconnite, palladoarsenide (Stillwater complex, Montana, USA
  

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