Hydrozincite

Name:
Hydrozincite
Detailed information:

Chemistry name:	zinc bloom
M Formula:	Zn5(OH)6(CO3)2
Properties:
White to gray or yellowish color, dull to silky luster. Fluorescent in UV light. D 3.5–4.0, Mohs hardness 2.0–2.5.
Occurrence:
Missouri, Pennsylvania, Utah, California, Nevada, Europe.
Use:
An ore of zinc.