Chemistry:Barstowite
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| Barstowite | |
|---|---|
 Barstowite from Passa Limani area, Lavrion District, Attiki Prefecture, Greece | |
| General | |
| Category | Halide minerals |
| Formula (repeating unit) | Pb4[Cl6|CO3]•H2O |
| Strunz classification | 3.DC.95 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic (2/m) (same H-M symbol) |
| Space group | P21/m |
| Identification | |
| Color | White to transparent |
| Mohs scale hardness | 3 |
| |re|er}} | Adamantine |
| Streak | White |
Barstowite, formula Pb4[Cl6|CO3]•H2O, is a transparent to white mineral in the monoclinic system.[2] It has a Mohs hardness of 3, a white streak and an adamantine lustre.[2]
The type locality for Barstowite is Bounds Cliff, St Endellion, Cornwall in the United Kingdom .[2] It is named after Richard W. Barstow[2] (1947–1982), a Cornish mineral collector.[3]
References
- ↑ 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.
- ↑ 2.0 2.1 2.2 2.3 Barstowite at Mindat.org mineralogical website
- ↑ "Mineralogical Record article on Richard Barstow". http://www.minrec.org/labels.asp?colid=103.
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