Minerals from the Andes

Sprays of green prismatic crystals forming radiating masses on a bluish green crysocolla base. 10cms x 7.5cms x 3.0cms. La Farola Mine, Copiapo,...

A small area of quartz and mixed sulphide matrix totally covered with very pale pink sharp rhombohedral crystals of manganocalcite. 9.4cms x 8.2cms x...