stibnite
/ˈstɪbnʌɪt
/noun [mass noun]
A lead-grey mineral, typically occurring as striated prismatic crystals, which consists of antimony sulphide and is the chief ore of antimony.Commonly associated minerals include orpiment, stibnite, a variety of sulfides and sulfosalts, calcite, and barite....
- There will be azurite, pyromorphite, marvelous twinned calcite, stibnite that rivals that from Japan, stibiconite, scheelite, hematite with lightly tinted quartz, cinnabar, hemimorphite, and a range of other colorful minerals.
- There were shops full of green and purple fluorite, ferberite and arsenopyrite, and spessartine and stibnite.
Origin
Mid 19th century: from Latin stibium 'black antimony' + -ine4 + -ite1.