Iranite

iranite

mimetite

dioptase

fornacite

Images
br Formula: CuPb₁₀(CrO₄)₆(SiO₄)₂(OH)₂
Compound chromate, iranite group, forms a series with hemihedrite
Crystal System: Triclinic
Specific gravity: 5.8
Hardness: 3
Streak: Yellow
Colour: Brownish yellow, yellow, Honey brown.
Solubility: soluble in warm Na₂CO₃ solution (AM 48.1417)
Common impurities: Zn
Environments

Hydrothermal environments

Iranite occurs in the oxidised portions of lead-bearing hydrothermal veins. Associated minerals include dioptase, fornacite, wulfenite, mimetite, cerussite and diaboleite (HOM).

Localities

At the type locality, the Sebarz Mine, Anarak District, Nain County, Isfahan Province, Iran, iranite occurs in very small amount, associated with dioptase, fornacite and another lead chromate (AM 48.1417)

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