a reddish mineral consisting of hydrated cobalt arsenate in monoclinic crystalline form and used in coloring glass; usually found in veins bearing cobalt and arsenic 同义词：cobalt bloom,
Erythrite or red cobalt is a secondary hydrated cobalt arsenate mineral with the formula (Co3(AsO4)2?8H2O). Erythrite and annabergite (Ni3(AsO4)2?8H2O) (nickel arsenate) form a complete series with the general formula (Co,Ni)3(AsO4)2?8H2O.
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