1. mineral
Wikipedia definition
2. MineralA mineral is a naturally occurring solid chemical substance formed through biogeochemical processes, having characteristic chemical composition, highly ordered atomic structure, and specific physical properties. By comparison, a rock is an aggregate of minerals and/or mineraloids and does not have a specific chemical composition. Minerals range in composition from pure elements and simple salts to very complex silicates with thousands of known forms. The study of minerals is called mineralogy.
Read “Mineral” on English Wikipedia
Read “鉱物” on Japanese Wikipedia
Read “Mineral” on DBpedia


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