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Allabogdanite

Allabogdanite
General
Category Phosphide mineral
Formula
(repeating unit)
(Fe,Ni)2P
Strunz classification 1.BD.15
Crystal system Orthorhombic
Crystal class Dipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)
Space group Pnma
Unit cell a = 5.748, b = 3.548
c = 6.661 [Å]; Z = 4
Identification
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
References

Allabogdanite is a very rare phosphide mineral with formula (Fe,Ni)2P, found in 1997 in a meteorite. It was described for an occurrence in the Onello meteorite in the Onello River basin, Sakha Republic; Yakutia, Russia; associated with taenite, schreibersite, kamacite, graphite and awaruite. It was named for Russian geologist Alla Bogdanova.


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