Collection: Rosasite

Formula: (Cu,Zn)₂(CO₃)(OH)₂

Cu: Zn ratio is near 3:2.

Colour: Blue, blue-green to green, sky-blue; colourless to light blue in transmitted light.

Lustre: Vitreous, Silky

Hardness: 4½

Specific Gravity: 4 - 4.2

Crystal System: Monoclinic

Member of: Rosasite Group

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