Hemimorphite

Hemimorphite is a copper cyclosilicate. The mineral varies widely in color, ranging from pale white to blue-green. Specimens are found in a variety of locations across the world, but notable localities include the Yunnan province of China and the Ojuela Mine in Mexico. Hemimorphite has been used as a zinc ore, as well as a component of calamine.

Uses

Hemimorphite is a major component of calamine, as well as a collectible mineral and minor zinc ore.

Properties
Chemical FormulaZn4Si2O7(OH)2·H2O
Hardness4.5-5
Crystal SystemOrthorhombic
Mineral ClassSilicates
LusterAdamantine, Silky