Antimonite

Antimonite, Stibnite, or Grey Antimony Ore, the sulphide of antimony, is the chief ore of antimony. It occurs generally in veins, has a lead-grey colour, metallic and sometimes iridescent lustre, often a fibrous or columnar structure, and is soft and extremely fusible. It is worked at Felsobanya and elsewhere in Hungary, in Borneo, Nevada, and New Brunswick. Very large crystals are obtained from Japan. It has long been used by women in the East to darken the eyelids.