Alkali pyroxene - Alkali pyroxene

Japanese: アルカリ輝石 - あるかりきせき
Alkali pyroxene - Alkali pyroxene

…In addition, pyroxenes in the augite-ferrosilite series that contain a lot of TiO 2 (>2-3% by weight) are called titanium augites. Also, pyroxenes that contain a lot of Na, such as aegirine NaFe 3+ Si 2 O 6 and jadeite NaAlSi 2 O 6 , are called alkali pyroxenes. In the diopside-hedgenite-aegirine series, they form a continuous solid solution, and those with intermediate compositions are called aegirine augites. …

*Some of the terminology that mentions "alkali pyroxene" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…このほか,オージャイト―フェロシライト系列の輝石でTiO2を多く(>2~3重量%)含むものをチタンオージャイトと呼ぶ。また,エジリンNaFe3+Si2O6成分,ヒスイ輝石NaAlSi2O6成分などNaを多く含むものをアルカリ輝石とよぶ。透輝石―ヘデン輝石―エジリン系では連続固溶体をなし,中間的組成のものはエジリンオージャイトと呼ばれる。…

※「アルカリ輝石」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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