Zimbabweite
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| Zimbabweite | |
|---|---|
)window.location='https://en.wikipedia.org/wiki/File:Zimbabweite.jpg') Zimbabweite found at its only known locality worldwide | |
| General | |
| Category | Oxide minerals |
| Formula (repeating unit) | (Na,K)2PbAs4(Nb,Ta,Ti)4O18 |
| IMA symbol | Zbb[1] |
| Strunz classification | 4.JA.40 |
| Crystal system | Orthorhombic |
| Crystal class | Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) |
| Space group | Ccmb |
| Unit cell | a = 12.23 Å, b = 15.29 Å c = 8.66 Å, Z = 4 |
| Identification | |
| Color | Yellow, yellow-brown |
| Luster | Adamantine |
| References | [2] |
Zimbabweite is a mineral; formula (Na,K)2PbAs4(Nb,Ta,Ti)4O18.[2] It is generally classed as an arsenite but is notable for also containing niobium and tantalum. A yellow brown mineral with orthorhombic crystal habit and a hardness of 5. It was discovered in 1986 in kaolinized pegmatite, i.e. weathered to clay, in Zimbabwe.[2]
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 http://www.mindat.org/min-4403.html Mindat
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