Allabogdanite
Allabogdanite is a very rare phosphide mineral with formula (Fe,Ni)2P, found in 1997 in a meteorite.[3][1] 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.[1] It was named for Russian geologist Alla Bogdanova.[2]
| 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 | [1][2] |
References
- Mindat
- Webmineral data
- Britvin S. N., Rudashevsky N. S., Krivovichev S. V., Burns P. C. and Polekhovsky Y. S. 2002: Allabogdanite, (Fe,Ni)2P, a new mineral from the Onello meteorite: The occurrence and crystal structure. American Mineralogist, 87(8-9), 1245-1249 -
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.