Barstowite
| 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 |
| Luster | Adamantine |
| Streak | White |
Barstowite, formula Pb4[Cl6|CO3]•H2O, is a transparent to white mineral in the monoclinic system. It has a Mohs hardness of 3, a white streak and an adamantine lustre.
The type locality for Barstowite is Bounds Cliff, St Endellion, Cornwall in the United Kingdom. It is named after Richard W. Barstow (1947–1982), a Cornish mineral collector.
...
Wikipedia