libethenite
noun
li·beth·en·ite
lə̇ˈbethəˌnīt
plural -s
: an olive green orthorhombic mineral Cu2(PO4)(OH) consisting of a basic copper phosphate and occurring in small prismatic crystals or in globular or reniform masses (hardness 4, specific gravity 3.6–3.8)
Word History
Etymology
German libethenit, from Libethen, Czechoslovakia + German -it -ite