Malachite

IMA formula: Cu₂(CO₃)(OH)₂

Crystallography: Monoclinic. P2₁/a. a = 9.4988(4) Å, b = 11.9663(5) Å, c = 3.24553(11) Å, β = 98.636(2)°. Ζ = 4.

Specimen #173. Malachite. Coyote Mining District, Coyote Mountains, Pima County, Arizona, USA. FOV 4.8 mm.

Specimen #146. Azurite (blue), malachite (green), and rhabdophane (tiny white needles on matrix). Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany. FOV 5.4 mm.