Rosasite
| Rosasite | ||
|---|---|---|
2V angle Measured: 33° | | |
| Solubility | Effervesces in cold, dilute hydrochloric acid | |
| References | [2][3][4] | |
| Major varieties | ||
| Nickeloan rosasite | Dark green | |
Rosasite is a
carbonate mineral with minor potential for use as a zinc and copper ore. Chemically, it is a copper zinc carbonate hydroxide with a copper to zinc ratio of 3:2, occurring in the secondary oxidation zone of copper-zinc deposits. It was originally discovered in 1908 in the Rosas mine in Sardinia, Italy, and is named after the location. Fibrous blue-green rosasite crystals are usually found in globular aggregates, often associated with red limonite and other colorful minerals. It is very similar to aurichalcite
, but can be distinguished by its superior hardness.
References
- S2CID 235729616.
- ^ Handbook of Mineralogy
- ^ Mindat
- ^ Webmineral