请输入您要查询的字词:

 

单词 melilite
释义
melilite

Geology and Earth Sciences
  • A member of the melilite group of minerals, that has the general formula (Mg,Al) (Ca,Na)2 (Si,Al)2 O7. There is a solid solution series between gehlenite (aluminium-rich) and åkermanite (magnesium rich); melilite occupies an intermediate position, with some substitution of sodium for calcium, and of aluminium for silicon or magnesium. Sp. gr. 2.9; hardness 5.5; white or greenish-white; granular or in tabular crystals; occurs in basic lavas, metamorphosed limestones, and furnace slags.


随便看

 

科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。

 

Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号 更新时间:2024/12/26 3:48:13