单词 melaconite 释义 melaconite Min.|mlknat|[Altered from prec.: see -ite.]An earthy black oxide of copper, found also in crystals. See tenorite.1850Dana Syst. Min. (1854) II. 518. 1865 Rep. Brit. Assoc., Sections 33 Crystals of oxide of copper (melaconi...