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Minerals

Naturally occurring substance that is solid and stable at room temperature, representable by a chemical formula, usually abiogenic, and has an ordered atomic structure. It is different from a rock, which can be an aggregate of minerals or non-minerals, and does not have a specific chemical composition. The general definition of a mineral encompasses the following criteria: 1 - Naturally occurring 2 - Stable at room temperature 3 - Represented by a chemical formula 4 - Usually abiogenic 5 - Ordered atomic arrangement

Contributors in Minerals

Minerals

藍色鑽石

Mining; Minerals

據報在 msn.news.com 上罕見 29.6 克拉藍色鑽石最近人們發現在南非與價格值範圍內數以千萬計的美元。橡子大小的鑽石是出土在普利托里亞附近天璽商務礦。 ...

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