Chemistry:Perettiite-(Y)
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| Perettiite-(Y) | |
|---|---|
 Perettiite inclusion in phenakite | |
| General | |
| Category | Silicate mineral |
| Formula (repeating unit) | Y2Mn4FeSi2B8O24 |
| Crystal system | Orthorhombic |
| Crystal class | Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) |
| Space group | Pmna |
| Unit cell | a = 12.8252(5) Å, b = 4.6187(2) Å, c = 12.8252(5) Å; Z = 2 |
| Identification | |
| Crystal habit | Microscopic inclusion |
| Cleavage | (010) |
| Mohs scale hardness | 7 |
| Specific gravity | 4.533 |
| References | [1][2][3] |
Perettiite-(Y) is a complex silicate–borate mineral with the formula Y2Mn4FeSi2B8O24.[2] It was first discovered in 2015 by Adolf Peretti of the Gemresearch Swisslab (GRS). It was found as inclusions in a phenakite crystal from Mogok, Myanmar.[5]
Perettiite-(Y) was approved for IMA (International Mineralogical Association) status in 2015.
References
- ↑ Mineralienatlas
- ↑ 2.0 2.1 Perettiite on Mindat.org
- ↑ Rosa Micaela Danisi; Thomas Armbruster; Eugen Libowitzky; Hao A.O. Wang; Detlef Günther; Mariko Nagashima; Eric Reusser; Willy Bieri (2015). "Perettiite-(Y), Y3+2Mn2+4Fe2+[Si2B8O24, a new mineral from Momeik, Myanmar"]. European Journal of Mineralogy 27 (6): 793–803. doi:10.1127/ejm/2015/0027-2483. Bibcode: 2015EJMin..27..793D. http://eurjmin.geoscienceworld.org/content/early/2015/08/26/ejm.2015.0027-2483.abstract.
- ↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode: 2021MinM...85..291W.
- ↑ GRS - Perettiite – A New Mineral Discovery From Burma
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