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Arsenate minerals usually refer to the naturally occurring orthoarsenates, possessing the (AsO4)3− anion group and, more rarely, other arsenates with anions like AsO3(OH)2− (also written HAsO42−) (example: pharmacolite Ca(AsO3OH).2H2O) or (very rarely) ()− (example: andyrobertsite). Arsenite minerals are much less common.〔(Webmineral )〕 Both the Dana〔(Webmineral Dana system )〕 and the Strunz〔(Webmineral Strunz system )〕 mineral classifications place the arsenates in with the phosphate minerals. Example arsenate minerals include: *Annabergite Ni3(AsO4)2·8H2O *Austinite CaZn(AsO4)(OH) *Clinoclase Cu3(AsO4)(OH)3 *Conichalcite CaCu(AsO4)(OH) *Cornubite Cu5(AsO4)2(OH)4 *Cornwallite Cu2+5(AsO4)2(OH)2 *Erythrite Co3(AsO4)2·8H2O *Mimetite Pb5(AsO4)3Cl *Olivenite Cu2(AsO4)OH == Nickel–Strunz Classification -08- Phosphates == IMA-CNMNC proposes a new hierarchical scheme (Mills et al., 2009). This list uses it to modify the Classification of Nickel–Strunz (mindat.org, 10 ed, pending publication). *Abbreviations: * *" *" - discredited (IMA/CNMNC status). * *"?" - questionable/doubtful (IMA/CNMNC status). * *"REE" - Rare-earth element (Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) * *"PGE" - Platinum-group element (Ru, Rh, Pd, Os, Ir, Pt) * *03.C Aluminofluorides, 06 Borates, 08 Vanadates (04.H V() Vanadates), 09 Silicates: * * *Neso: insular (from Greek νησος nēsos, island) * * *Soro: grouping (from Greek σωροῦ sōros, heap, mound (especially of corn)) * * *Cyclo: ring * * *Ino: chain (from Greek ις (ινος ''inos'' ), fibre) * * *Phyllo: sheet (from Greek φύλλον ''phyllon'', leaf) * * *Tekto: three-dimensional framework *Nickel–Strunz code scheme: NN.XY.##x * *NN: Nickel–Strunz mineral class number * *X: Nickel–Strunz mineral division letter * *Y: Nickel–Strunz mineral family letter * * 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「Arsenate minerals」の詳細全文を読む スポンサード リンク
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