disthene

Japanese: disthene
disthene

…Its specific gravity is 3.67, which is greater than that of andalusite and sillimanite. Its Mohs hardness varies greatly depending on the crystal orientation, from 4 to 5 along the c -axis on the (100) plane to 6 to 7 along the b -axis. It is also called disthene because of this. It occurs in high-pressure metamorphic rocks of pelitic origin, and is accompanied by garnet, staurolite, etc. …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…比重3.67で,紅柱石,ケイ線石のいずれよりも大きい。モース硬度は(100)面上のc軸方向で4~5,b軸方向では6~7と,結晶の方位によって大きく異なることから二硬石distheneとも称される。泥質岩起源の高圧変成岩中に出現し,ザクロ石,十字石などを伴う。…

※「disthene」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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