Adamite
Zn2AsO4(OH)
Locality:
Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d’Azur, France
Field of View: 2.5 mm
Blue green Adamite.
Collection and photo: Stephan Wolfsried
Adamite is the orthorhombic dimorph of Paradamite. The Zn analogue of zincolivenite. Adamite forms transparent to translucent pale yellow through green to bluish green elongated crystals and radial aggregates.Adamite is a secondary mineral found in zinc deposits containing arsenic-bearing minerals. Yellow color in the mineral is due to Fe compounds, tints of green are connected with the presence of copper and purple colour is caused by cobalt content. Reddish to pink and violet transparent crystals have been reported from Mexico.
Large individual clear crystals can be cut into attractive faceted stones.
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