pharmacosiderite

noun

phar·​ma·​co·​siderite

: a mineral Fe₃(AsO₄)₂(OH)₃.5H₂O consisting of a hydrous basic iron arsenate commonly occurring in green or yellowish green cubic crystals (hardness 2.5, specific gravity 2.9–3)

Word History

Etymology

German pharmakosiderit, from pharmako- pharmaco- + siderit siderite

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