Kieselite - Kieselite (English spelling)
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Chemical composition: MgSO 4 ･H 2 O. A monoclinic mineral that occurs in the form of chunks or granules. It is colorless, grayish white, or yellowish white, with a glassy luster. Mohs hardness: 3.5, specific gravity: 2.6. It is difficult to dissolve in water. It loses its water of crystallization at about 350°C. It occurs mainly in sedimentary deposits of marine origin, together with rock salt and other salts. [Toshiro Kato] Source: Heibonsha World Encyclopedia, 2nd Edition Information |
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化学組成MgSO4･H2O。単斜晶系，塊状または粒状をなして産出する鉱物。無色，灰白色，黄白色で，ガラス光沢。モース硬度3.5，比重2.6。水に溶けにくい。結晶水は約350℃で失われる。主として海洋起源の堆積鉱床中に岩塩やその他の塩類とともに産出する。【加藤 敏郎】
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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