Specimen #852

Name: Rosasite

Type: Micromount

Locality: Mexico

Favorite? N

Fluorescent? N

Size:

Weight:

Acquired: 2008-11-02

Source: Ian Heales Collection

Label: N

Comment: Rosasite forms in the oxidation zones of zinc-copper deposits. It typically is found as crusts and botryoidal masses or nodules. Crystals are fibrous and found in tufted aggregates. The color is an attractive bluish green. Rosasite is associated with red limonite and other such colorful minerals as aurichalcite, smithsonite and hemimorphite. Nodules of rosasite certainly add color to what are termed "landscape" specimens. Rosasite can be confused with Aurichalcite. However rosasite is usually more massive but not lamellar. Rosasite crystals are harder than aurichalcite; 4 versus 1 - 2 respectively.

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

There is one picture on file

M00852-01.jpg:

Rosasite, Mexico - Magnification: 10X, FOV: 13.5 x 9.0 mm