Mineral Information and Data:

Allabogdanite
(Fe,Ni)2P [CNMNC approved formula]

Named for Alla Bogdanova, Geological Institute, Kola Science Centre of Russian Academy of Sciences.

IMA status : Approved Species 1997 (IMA2000-038)
CLASSIFICATION 
Dana
(8th edition) :
01.01.21.04  (This Dana# Added)
  (01) Native Elements
  (01.01) with metallic elements other than the platinum group
  (01.01.21) Barringerite Group phosphides
  
Nickel-Strunz
(10th edition) :
01.BD.15
  (01) Elements
  (01.B) Metallic Carbides, Silicides, Nitrides and
  (01.BD) Phosphides
  
Crystal system: Orthorhombic System
Point group (H-M): mmm (or 2/m 2/m 2/m) — dipyramidal
Space group: P nma
Unit cell: a = 5.748 Å, b = 3.548 Å, c = 6.661 Å
Crystal Habit: microscopic lamellar crystals
Twinning: gypsum like, possibly {110}
  
Color: Light straw-yellow
Diaphaneity: Opaque
Luster: Metallic
Hardness (Mohs): 5 - 6
Measured Density: 7.11 g/cm3
Tenacity: Brittle
  
Polymorphism and Series: Orthorohmbic polymoph of barringerite. Isostructural with rhodarsenide.
Geologic Setting: Microscopic exsolved laths disseminated in plessite. Iron meteorites.
  

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