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Carbonate

Zincrosasite

(Zn,Cu)₂(CO₃)(OH)₂
ClassCarbonate
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Zincrosasite specimen

Blue crystals of the rare mineral zincrosasite on a contrasting matrix. From: Kali Kafi Mine, Anarak District, Esfahan Province, Iran (Islamic Republic). — Photo: David Hospital · CC BY-SA 4.0

Zincrosasite

Zincrosasite is an IMA-recognized mineral species in the carbonate class, with the chemical formula (Zn,Cu)₂(CO₃)(OH)₂.

It is a member of the Malachite structural group.

Key properties: Pale blue streak; optically biaxial.

IMA symbol Zrss, IMA status: questionable, named in 1959.

Found in an oxidized zone of a dolostone-hosted hydrothermal polymetallic ore deposit (Tsumeb, Namibia).

It is found associated with Azurite, cerussite, hemimorphite (Tsumeb, Namibia); cerussite, aurichalcite, malachite (Rudabanya, Hungary).

The name refers to its predominance of zinc content over copper content, and its relation to rosasite.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet. Browse more Z minerals or help write this entry.