Specimen #843

Name: Rosasite

Type: Micromount

Locality: Blanchard Mine (Portalas-Blanchard Mine), Bingham, Hansonburg District, Socorro Co., New Mexico, USA

Favorite? N

Fluorescent? N

Size:

Weight:

Acquired: 2008-10-27

Source: Ian Heales Collection

Label: N

Comment: 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 colourful minerals. It is very similar to aurichalcite, but can be distinguished by its superior hardness.

Minerals: Rosasite ((Cu,Zn)₂(CO₃)(OH)₂)

There is one picture on file

M00843-01.jpg:

Rosasite,Blanchard Mine (Portalas-Blanchard Mine), Bingham, Hansonburg District, Socorro Co., New Mexico, Magnification: 50X, FOV: 2.7 x 1.8 mm