造岩礦物 長石 - 中鈉長石特徵 Andesine Oka, Quebec

Описание к видео 造岩礦物 長石 - 中鈉長石特徵 Andesine Oka, Quebec

造岩礦物 長石 - 中鈉長石 Andesine (Oka, Quebec),中鈉長石是斜長石系列的成員之一。

Andesine is a silicate mineral, a member of the plagioclase feldspar solid solution series. Its chemical formula is (Ca, Na)(Al, Si)4O8, where Ca/(Ca + Na) (% anorthite) is between 30%-50%. The formula may be written as Na0.7-0.5Ca0.3-0.5Al1.3-1.5Si2.7-2.5O8. Wikipedia

標本由桃園親子教育博物館館長 礦石收藏家 林積舟老師提供拍攝

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