Meneghinite
| Meneghinite | |
|---|---|
|
Meneghinite twin, 1.1 x 0.4 x 0.2 cm. Bottino Mine, Stazzema, Italy | |
| General | |
| Category | Sulfosalt mineral |
| Formula (repeating unit) | CuPb13 Sb7S24 |
| Strunz classification | 02.HB.05b |
| Crystal system | Orthorhombic |
| Identification | |
| Color | Blackish lead-grey |
| Crystal habit | Prismatic to acicular, massive |
| Cleavage | {010} perfect |
| Fracture | Conchoidal |
| Tenacity | Brittle |
| Mohs scale hardness | 2½ |
| Luster | Metallic |
| Streak | Black shining |
| Diaphaneity | Opaque |
| Specific gravity | 6.36 |
| Pleochroism | Weak |
| References | [1][2] |
Meneghinite is a sulfosalt mineral with the chemical formula CuPb13 Sb7S24.[2]
In the orthorhombic crystal system, meneghinite has a Mohs hardness of 2½, one perfect cleavage and a conchoidal fracture. It is a blackish lead-grey in colour and gives a black shining streak. Its lustre is metallic.[2]
Discovered in the Italian Province of Lucca in 1852,[2] it is named after Giuseppe Meneghini (1811–1889) of the University of Pisa, who first observed the species.[3] The Bottino Mine in Lucca is the type locality.[2]
Sample of Meneghinite from the Harvard Museum of Natural History
References
- ↑ http://rruff.geo.arizona.edu/doclib/hom/meneghinite.pdf Handbook of Mineralogy
- 1 2 3 4 5 Mindat information page for Meneghinite
- ↑ The Brown Reference Group plc, ed. (2007). "Meneghinite". Treasures of the Earth. De Agostini UK Ltd. ISBN 0-7489-7995-6.
This article is issued from Wikipedia - version of the 10/21/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.