Webster’s Revised Unabridged Dictionary · 1913
Libethenite
Li·beth′en·ite (lĭ·bĕth′ĕn·īt), n. [From Libethen, in Hungary, where it was first found.] (Min.) A mineral of an olive-green color, commonly in orthorhombic crystals. It is a hydrous phosphate of copper.