Copiapite

（重定向自Yellow Copperas）

Lustrous, micaceous crystals of copiapite to 8 mm on matrix from the Alcaparrosa Mine, El Loa Province, Antofagasta Region, Chile (sample size: 11.9 x 7.4 x 4.0 cm)

Copiapite is a hydrated iron sulfate mineral with formula: FeFe₄(SO₄)₆(OH)₂·20(H₂O). Copiapite can also refer to a mineral group, the copiapite group.

Copiapite is strictly a secondary mineral forming from the weathering or oxidation of iron sulfide minerals or sulfide-rich coal. Its most common occurrence is as the end member mineral from the rapid oxidation of pyrite. It also occurs rarely with fumaroles. It occurs with melanterite, alunogen, fibroferrite, halotrichite, botryogen, butlerite and amarantite. It is by far the most common mineral in the copiapite group.

单词	Yellow Copperas
释义	Yellow Copperas 英语百科 Copiapite （重定向自Yellow Copperas） Copiapite is a hydrated iron sulfate mineral with formula: FeFe₄(SO₄)₆(OH)₂·20(H₂O). Copiapite can also refer to a mineral group, the copiapite group. Copiapite is strictly a secondary mineral forming from the weathering or oxidation of iron sulfide minerals or sulfide-rich coal. Its most common occurrence is as the end member mineral from the rapid oxidation of pyrite. It also occurs rarely with fumaroles. It occurs with melanterite, alunogen, fibroferrite, halotrichite, botryogen, butlerite and amarantite. It is by far the most common mineral in the copiapite group.
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