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Whiteite is a rare hydrated phosphate mineral, with hydroxyl ==Whiteite subgroup== The name whiteite refers to three minerals in the jahnsite-whiteite group, whiteite subgroup. Subgroup members (formulae from IMA〔): *Whiteite-(CaFeMg), IMA1975-001, CaFe2+Mg2Al2(PO4)4(OH)2·8H2O *Whiteite-(MnFeMg), IMA1978-A, Mn2+Fe2+Mg2Al2(PO4)4(OH)2·8H2O *Whiteite-(CaMnMg), IMA1986-012, CaMn2+Mg2Al2(PO4)4(OH)2·8H2O *Rittmannite, Mn2+Mn2+Fe2+2Al2(PO4)4(OH)2·8H2O In the whiteite formulae, the symbols in brackets indicate the dominant atom in three distinct structural positions, designated X, M(1), and M(2), in that order; for instance, magnesium Mg is always the dominant atom in the M(2) position for all the whiteite minerals.〔 Whiteite was named after John Sampson White Jr (born 1933), associate curator of minerals at the Smithsonian Institution, and founder, editor and publisher (1970-1982) of the Mineralogical Record. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Whiteite」の詳細全文を読む スポンサード リンク
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