Definify.com

Webster 1913 Edition

(lĭ-bĕth′ĕn-īt)

Noun.

[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.

libethenite ‎(uncountable)

(mineralogy) A rare copper phosphate hydroxide mineral that forms striking dark green orthorhombic crystals.