出典:Wiktionary
出典:『Wiktionary』 (2025/09/19 20:04 UTC 版)
olivenite (plural olivenites)
出典:Wikipedia
出典:『Wikipedia』 (2011/02/06 15:20 UTC 版)
Olivenite is a copper arsenate mineral, formula Cu2AsO4OH. It crystallizes in the monoclinic system (pseudo-orthorhombic), and is sometimes found in small brilliant crystals of simple prismatic habit terminated by domal faces. More commonly, it occurs as globular aggregates of acicular crystals, these fibrous forms often having a velvety lustre; sometimes it is lamellar in structure, or soft and earthy.