Tags: Chemical Substance, Mineral.
Ardaite is a very rare sulfosalt mineral with chemical formula Pb19Sb13S35Cl7 in the monoclinic crystal system named after the Arda river which passes through the type locality. It was discovered in 1978 and approved by the International Mineralogical Association in 1980. It was the second well-defined natural chlorosulfosalt after dadsonite.Greenish gray or bluish green in colour its lustre is metallic.
