Minerals identify

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Ardaite

Sulfosalt mineral

Ardaite is a very rare sulfosalt mineral with chemical formula Pb19Sb13S35Cl7 in the monoclinic crystal system named after the Arda river It was discovered in 1978 and approved by the International Mineralogical Association It was the second well-defined natural chlorosulfosalt, after dadsonite

Greenish gray or bluish green in color, its luster is metallic. Ardaite occurs as 50 µm fine-grained aggregates of acicular crystals associated with galena, and Cl-bearing robinsonite and semseyite , in the Madjarovo polymetallic ore deposit in Bulgaria. Ardaite has a hardness of 2.5 to 3 on Mohs scale

The type locality polymetallic ore deposit in the Rhodope mountains Later its occurrence was proved in the Gruvåsen deposit, near Filipstad , Bergslagen

Identification

Color of mineral

Grey
Green

Mohs scale ( mineral hardness )

2.5
3

Luster ( interacts light )

Metallic

Crystal ( diaphaneity )

Monoclinic