Allabogdanite
Phosphide mineral
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Allabogdanite is a very rare phosphide mineral with the chemical formula (Fe,Ni)2P, found in 1994 in a meteorite.[2][5] 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.[2] It was named for Russian geologist Alla Bogdanova.[3]
| Allabogdanite | |
|---|---|
| General | |
| Category | Phosphide mineral |
| Formula | (Fe,Ni)2P |
| IMA symbol | Abg[1] |
| 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 | [2][3][4] |
In a June 2021 study, scientists reported the discovery of terrestrial allabogdanite in a sedimentary formation. It is located in the Negev desert of Israel, just southwest of the Dead Sea.[4]
