Dims: 3.8 x 3.5 x 1.0" (9.7 x 8.8 x 2.5 cm)
Wt: 7.9 oz. (225 g)
Mina La Farola, Sierra Las Pintados, Region III, Chile
Sprays of radiating, somewhat compact Atacamite rest on the flat gray base of this cabinet specimen. These sprays are made up of scores of compact blades that reach lengths of 0.5" (1.3 cm) and are in very good condition, though some breakage is visible. Though they are rather difficult to study individually, they appear to have good orthorhombic form. All have the standard deep green color and vitreous luster of the specie, and some are likely to be dimly transparent. The Atacamite sprays are accompanied by tiny olivenite nodules and possibly some nantokite (a copper chloride mineral)- all of these rest on a thin chrysocolla crust which covers the base rock.