CALEDONITE
Specimen cld-2

Dims: 0.8 x 0.5 x 0.5" (1.9 x 1.2 x 1.2 cm)

Wt: 7 g

Mammoth Mine, Tiger, Arizona, U.S.A.

Several Caledonite prisms rest in a hollow in the host rock of this thumbnail piece. These crystals do not exceed 0.3" (8 mm) in length and are generally in very good condition, being protected in their hollow. All appear to have very good orthorhombic form, though only one or two crystals are actually terminated. They have the standard deep blue color with a hint of green and bright, vitreous luster of their specie, and are transparent and quite clear, though slightly internally fractured. The black-and-white host rock is stained blue, and the piece is hot-glued into a plastic thumbnail box.

Dims:2.1x1.2x1.1" (5.3x3.0x2.8 cm)

Wt: 2.7oz. (76g)

Rowley Mine, Maricopa cty., Arizona

There is a thin microcrystalline coating of light blue caledonite on the host rock of this specimen, occuring with a similar coating of dark blue diaboleite. Although some crystal faces are visible, no details of the orthorhombic form of caledonite can be observed. There is no damage to this specimen.