copiapite
noun
co·pi·a·pite
| \ ˈkōpēəˌpīt\
plural -s
Definition of copiapite
: a mineral composed of a basic iron sulfate (Fe,Mg)Fe4(SO4)6(OH)2.20H2O, of yellow color and metallic taste (hardness 2.5, specific gravity 2.10)
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