A structure that consists entirely of crystalline matter, regardless of mineral composition. It is mainly used in igneous rocks and corresponds to glass. [English-Japanese and English-Japanese Earth Science Dictionary (1914)] Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information |
〘名〙 鉱物の成分に関係なく、全体が結晶質の集合からなる組織。主に火成岩についていい、ガラス質に対応する。〔英和和英地学字彙(1914)〕
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