Dims: 3.6 x 1.9 x 1.5" (9.2 x 4.8 x 3.7 cm)
Wt: 4.3 oz. (122 g)
This lovely hand specimen consists of dozens of intergrown Atacamite clusters that rest on a dull brown base rock. Each cluster is made up of several radiating Atacamite crystals that are generally in excellent condition (a few clusters on one face of the base rock are crushed) and reach 0.3" (8 mm) in length. They are the best-quality crystals of Atacamite that I have yet seen, and are quite easy to study- their orthorhombic prismatic form is excellent, and so thin as to appear nearly bladed or spiky in some cases. All have the classic, deep forest-green color and vitreous luster that are standard for this mineral, and even with their deep color, they are still transparent and noticeably clear. A small amount of what may be chrysocolla coats small portions of the base rock.