Formula: Pb₁₈Ag₁₅Sb₄₇S₉₆

Species:

Colour: Grey

Lustre: Metallic

Crystal System: Monoclinic

Member of: Lillianite Homologous Series Group

Name: The name quantrandorite was proposed in1984 and the species was officially renamed in 2022.The name quatrandorite derives from the Latin quater (= composed of 4 units) referring to the multiplicity of the basic subcell. The species was officially renamed to quatrandorite in 2022.

Type Locality: Les Cougnasses mine, Orpierre, Gap, Hautes-Alpes, Provence-Alpes-Côte d’Azur – France