dickinsonite

dickinsonite

[′dik·ən·sə‚nīt]
(mineralogy)
H2Na6(Mn,Fe,Ca,Mg)14(PO4)12·H2O A green mineral consisting of foliated hydrous acid phosphate, chiefly of manganese, iron, and sodium, and is isostructural with arrojadite; specific gravity is 3.34.
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References in periodicals archive ?
5-mm specimen of dickinsonite, and the painting is a phantasma of gleaming gray-blue wedges, a Star Wars cityscape, thrusting at all angles over a third of a page, well, just enjoy it; this is not dickinsonite but a Dream of Dickinsonite.