Bayldonite
Bayldonite | |
---|---|
| |
General | |
Category | Arsenate minerals |
Formula (repeating unit) | PbCu3(AsO4)2(OH)2 |
Strunz classification | 8.BH.45 |
Crystal system | Monoclinic |
Crystal class | Prismatic (2/m) |
Space group | C2/c |
Identification | |
Color | Green, apple-green |
Crystal habit | Mammillary crust |
Mohs scale hardness | 4½ |
Luster | Resinous |
Density | 5.24–5.65 g/cm3 (measured), 5.707 g/cm3 (calculated) |
References | [1][2][3] |
Bayldonite (BAIL-done-ite)[4] is a rare secondary mineral with the chemical formula PbCu3(AsO4)2(OH)2. It was first discovered in Penberthy Croft Mine, Cornwall, England, United Kingdom.[4] It is named after its discoverer, John Bayldon (1837(8) – 1872).[5] Specimens are also found in Tsumeb, Namibia, and Arizona, United States. It is sometimes used a gemstone.[6]
References
Wikimedia Commons has media related to Bayldonite. |
- ↑ Mineralienatlas
- ↑ "Bayldonite Mineral Data". Webmineral. Archived from the original on 7 June 2011. Retrieved 6 June 2011.
- ↑ "Bayldonite mineral information and data". Mindat. Retrieved 6 June 2011.
- 1 2 Thomas, Arthur (2008). Gemstones: properties, identification and use. New Holland Publishers. p. 159. ISBN 978-1-84537-602-4.
- ↑ A. H. Church: XLI.—Chemical researches on some new and rare cornish minerals. In: Journal of the Chemical Society, 1865, 18, S. 259-268, doi:10.1039/JS8651800259.
- ↑ Gemstones: Properties, Identification and Use By Arthur Thomas, p.159
This article is issued from Wikipedia - version of the 12/3/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.