Tags: Chemical Substance, Mineral.
Xilingolite is a lead sulfide mineral with formula Pb3Bi2S6. It has a hardness of 3 a metallic luster and usually exhibits a lead-grey color. It is a dimorph of lillianite exhibiting increased Pb-Bi order and decreased symmetry.It’s crystal system is monoclinic with three axes of unequal length two of which are at an oblique angle to each other while the third axis is perpendicular to the plane formed by the other two.