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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Yuksporite ： ウィキペディア英語版 Yuksporite Yuksporite is a rare inosilicate mineral with double width, unbranched chains, and the complicated chemical formula K4(Ca,Na)14Sr2Mn(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3.〔 It contains the relatively rare elements strontium, titanium and niobium, as well as the commoner metallic elements potassium, calcium, sodium and manganese. As with all silicates, it contains groups of linked silicon and oxygen atoms, as well as some associated water molecules. Yuksporite is a member of the umbite group that has just two known members, umbite, K2ZrSi3O9.H2O, and yuksporite.〔 It was first reported in 1922, from nepheline syenite occurrences in the Kola Peninsula, Russia, and named by Alexander Fersman for the locality, near Mount Yukspor. == Unit cell == Yuksporite was originally thought to be orthorhombic, space group unknown.〔〔〔 In 2004, however, the structure was solved using synchrotron radiation and found to be monoclinic 2/m with space group P21/m.〔〔 The monoclinic unit cell has two formula units per cell (Z = 2)〔 and side lengths a = 7.126 Å, b = 24.913 Å and c = 17.075 Å, with the angle β between the a and c axes equal to 101.89°.〔Krivovichev, Yakovenchuk, Armbruster, Dobelin, Pattison, Weber and Depmeier (2004) American Mineralogist 89:1561〕 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「Yuksporite」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.