Allabogdanite is a very rare phosphide mineral with formula (Fe, Ni)2P, found in 1997 in a meteorite. It is not Radioactive. It was described as an occurrence in the Onello meteorite in the Onello River basin, Sakha Republic; Yakutia, Russia; associated with taenite, schreibersite, kamacite, graphite, and awaruite.

It occurs as thin lamellar crystals disseminated in plessite. Associated minerals are nickelphosphide, schreibersite, awaruite, and graphite. It was named for Russian geologist Alla Bogdanova.

General Information:

  • Category: Phosphide mineral
  • Formula: (Fe, Ni)2P
  • Crystal system: Orthorhombic.
  • Cleavage: None Observed
  • Density: 7.11 g/cm3 (Calculated).


These chemical properties also depend on the way the mineral atoms are bound in the mineral’s crystal structure. On the basis of the crystallography of minerals, a chemical formula is designed for better interpretation of its structure.

  • Color: Light straw-yellow
  • Crystal habit: Minute exolution laminae in plessite
  • Tenacity: Brittle
  • Mohs scale hardness: 5-6
  • Luster: Metallic
  • Diaphaneity: Opaque
  • Specific gravity: 7.11.

Allabogdanite’s Chemical Properties gives us information about the mineral’s chemical composition. A mineral is basically composed of various elements in varied proportions. These elements define how the mineral will behave when exposed to different conditions.


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