- Azurite, Quartz
- Thumbnail, 1.6 x 1.6 x 0.7 cm
- Sierra Rica, Chihuahua, Mexico
Sierra Rica, Chihuahua, Mexico. A fine, older azurite specimen from the Mullane Collection and the less well-known Sierra Rica Mine of Chihuahua, Mexico. Two beautiful colors of azurite crystals richly cover the hills and dales of the quartz crystal matrix. Electric-blue azurite crystals are complimented by scintillating, spherical clusters of midnight-blue azurite blades.