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Formula: MgFe3+4(SO4)6(OH)2.20H2O
Hydrated sulphate, copiapite group
Crystal system: Triclinic
Specific gravity: 2.16 calculated
Hardness: 2½ to 3
Colour: Lemon-yellow, orange, greenish yellow
Environments
Magnesiocopiapite is an uncommon secondary mineral,
typically formed by oxidation of pyrite. Associated minerals include
pyrite, römerite,
paracoquimbite,
halotrichite and
redingtonite
(HOM).
Localities
The type locality is Blythe, Riverside County, California, USA.
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