Dims: 1.3 x 0.8 x 0.5" (3.2 x 2.0 x 1.2 cm)
Wt: 0.4 oz. (11 g)
Tonopah-Belmont Mine, Maricopa County, Arizona, U.S.A.
Crusts of powdery Massicot partly coat the dark base material of this thumbnail piece. Like most such specimens, damage cannot be determined because no actual crystals are present. The Massicot ranges in coloration from a dull orange to a dull, dirty yellow coloration and has a uniform, matte luster. There may possibly be a quantity of litharge (another lead oxide with an identical chemistry but a different crystal structure) present, but sensitive equipment would be needed to detect it. The specimen is affixed inside a plastic thumbnail box with a removable putty.