“mineral”的概念、定义、翻译、参考文献-科学参考

mineral

Chemistry

A naturally occurring substance that has a characteristic chemical composition and, in general, a crystalline structure. The term is also often applied generally to organic substances that are obtained by mining (e.g. coal, petroleum, and natural gas) but strictly speaking these are not minerals, being complex mixtures without definite chemical formulas. Rocks are composed of mixtures of minerals. Minerals may be identified by the properties of their crystal system, hardness (measured on the Mohs scale), relative density, lustre, colour, cleavage, and fracture. Many names of minerals end in -ite.

Chemical Engineering

A solid substance that occurs in nature characterized by having a definite chemical composition or being made up of several chemical compositions with a distinctive molecular structure. Most minerals are inorganic, although minerals such as coal are organic in origin. Ore is a mineral or aggregate that contains minerals that may be valuable and can be extracted, or contain undesired minerals called gangue.

Geology and Earth Sciences

Usually inorganic substance which occurs naturally, and typically has a crystalline structure whose characteristics of hardness, lustre, colour, cleavage, fracture, and relative density can be used to identify it. Each mineral has a characteristic chemical composition. Rocks are composed of minerals. More loosely, certain organic substances obtained by mining are sometimes termed ‘minerals’.

单词	mineral
释义	mineral Chemistry A naturally occurring substance that has a characteristic chemical composition and, in general, a crystalline structure. The term is also often applied generally to organic substances that are obtained by mining (e.g. coal, petroleum, and natural gas) but strictly speaking these are not minerals, being complex mixtures without definite chemical formulas. Rocks are composed of mixtures of minerals. Minerals may be identified by the properties of their crystal system, hardness (measured on the Mohs scale), relative density, lustre, colour, cleavage, and fracture. Many names of minerals end in -ite. Chemical Engineering A solid substance that occurs in nature characterized by having a definite chemical composition or being made up of several chemical compositions with a distinctive molecular structure. Most minerals are inorganic, although minerals such as coal are organic in origin. Ore is a mineral or aggregate that contains minerals that may be valuable and can be extracted, or contain undesired minerals called gangue. Geology and Earth Sciences Usually inorganic substance which occurs naturally, and typically has a crystalline structure whose characteristics of hardness, lustre, colour, cleavage, fracture, and relative density can be used to identify it. Each mineral has a characteristic chemical composition. Rocks are composed of minerals. More loosely, certain organic substances obtained by mining are sometimes termed ‘minerals’.
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