Strontium mineral - Strontium mineral

Japanese: ストロンチウム鉱物 - ストロンチウムこうぶつ(英語表記)strontium mineral
Strontium mineral - Strontium mineral
A general term for minerals that contain strontium. Representative minerals include celestite and strontianite, both of which are the source minerals of strontium. Both are characterized by their high specific gravity (3.6 to 4.0). The theoretical chemical composition of each mineral is celestite 56.4% SrO, 43.6% SO 3 , and strontianite 70.1% SrO, 29.9% CO 2 , but in many cases Ba, Ca, Mg, etc. are dissolved in Sr. Small amounts of SiO 2 (derived from quartz) are also found as mixtures.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
ストロンチウムを含む鉱物の総称。代表的な鉱物として天青石とストロンチアン石strontianiteがあり,それぞれストロンチウムの原料鉱物である。いずれも比重の大きいこと(3.6~4.0)が特徴である。それぞれの鉱物の理論化学組成は,天青石ではSrO56.4%,SO343.6%,ストロンチアン石ではSrO70.1%,CO229.9%となるが,多くの場合SrにBa,Ca,Mgなどが固溶する。また混合物として少量のSiO2(石英に起因する)などがみられる。

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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