Dims: 2.1" x 0.9" x 0.4" (5.3 x 2.3 x 1.0 cm)
Wt: 23.2 g
Jachymov (Joachimstahl), northwestern Bohemia, Czech Republic
The bulk of this specimen's mass is made up of Arsenic, an element that is seldom found in its native form. It occurs as hundreds of tiny, malformed, intergrown crystals that are heavily oxidized. A loupe is needed to study them effectively. The crystals seem to take on an almost bladed form at times, but they are undamaged. Under magnification, one can see glimpses of silver-gray color and metallic luster on exposed edges, but the material is otherwise completely oxide-coated, with a gray black color and a dull luster. The specimen appears to be made up almost entirely of the metal, and what little foreign material is present I cannot identify. It is one of the oddest specimens of a native element that I have seen.