Dims: 5.6" x 3.7" x 1.1" (14.2 x 9.4 x 2.8 cm)
Wt: 4.70 oz. (133.3 g)
Omega Mine, Arizona, U.S.A.
Hundreds of botryoidal globules of Rosasite rest on the host rock of this specimen, which appears to be slightly decayed, botryoidal goethite. The Rosasite has a very pale aqua-blue coloration and a dull luster, and is opaque. The formations are well-formed and are wonderful to look at under magnification. There are also several patches of both massive and clusters of bladed crystals of calcite scattered on the piece. One small area near a large formation of crystalline calcite shows tiny sprays of needlelike Rosasite crystals, which have a much deeper color than the botryoidal formations. The goethite host rock itself consists of two thin sheets that partially intersect each other and are coated with small botryoidal formations that are intergrown with the Rosasite. The narrow space between the sheets is filled with both calcite and Rosasite. It is one of the most attractive and interesting specimens that I have seen in months!