…However, the classification of igneous rocks by norm is no longer used today. Among normative minerals, a group characterized by SiO 2 and Al 2 O 3 is called salic minerals (some do not necessarily contain Si or Al). The main ones are quartz SiO 2 , corundum Al 2 O 3 , feldspars (orthoclase KAlSi 3 O 8 , albite NaAlSi 3 O 8 , anorthite CaAl 2 Si 2 O 8 ), and feldspars (nepheline NaAlSiO 4 , leucite KAlSi 2 O 6 , caryophyllite KAlSiO 4 ). … *Some of the terminology explanations that mention "salic" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…しかし,ノルムによる火成岩の分類法は現在使用されていない。 ノルム鉱物のうち,SiO2とAl2O3を特徴とする一群のものをサリックsalic鉱物と呼ぶ(なかには必ずしもSiやAlを含まないものもある)。おもなものは,石英SiO2,コランダムAl2O3,長石(正長石KAlSi3O8,アルバイトNaAlSi3O8,アノーサイトCaAl2Si2O8),準長石(ネフェリンNaAlSiO4,リューサイトKAlSi2O6,カリオフィライトKAlSiO4)などである。… ※「salic」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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