Tags: Chemical Substance, Mineral.
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.A characteristic feature and one to which the name alludes (German Olivenerz of A. G.