Dacostaite

K(Mg2Al)[Mg(H2O)6]2(AsO4)2F6·2H2O

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Dacostaite is a rare silver mercury sulfide mineral first described from epithermal silver-mercury ore deposits in Portugal. It occurs as black metallic grains and masses associated with cinnabar, native silver, and other silver sulfide minerals. The mineral is of interest to ore mineralogists studying the complex silver-mercury sulfide system in epithermal ore environments.

Frequently Asked Questions

What is the chemical formula of Dacostaite?
The chemical formula of Dacostaite is K(Mg2Al)[Mg(H2O)6]2(AsO4)2F6·2H2O.