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Allabogdanite 
Summary
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 (repeating unit) | (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]
See also edit
References edit
- ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ a b c Mindat
- ^ a b Webmineral data
- ^ a b Britvin, Sergey N.; Vereshchagin, Oleg S.; Shilovskikh, Vladimir V.; Krzhizhanovskaya, Maria G.; Gorelova, Liudmila A.; Vlasenko, Natalia S.; Pakhomova, Anna S.; Zaitsev, Anatoly N.; Zolotarev, Andrey A.; Bykov, Maxim; Lozhkin, Maksim S.; Nestola, Fabrizio (2021). "Discovery of terrestrial allabogdanite (Fe,Ni)2P, and the effect of Ni and Mo substitution on the barringerite-allabogdanite high-pressure transition". American Mineralogist. 106 (6): 944–952. Bibcode:2021AmMin.106..944B. doi:10.2138/am-2021-7621. S2CID 226434207.
- ^ Britvin, Sergey N.; Rudashevsky, Nikolay S.; Krivovichev, Sergey V.; Burns, Peter C.; Polekhovsky, Yury 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. Bibcode:2002AmMin..87.1245B. doi:10.2138/am-2002-8-924. S2CID 99564642.