“marble”的概念、定义、翻译、参考文献-科学参考

marble

Chemistry

A metamorphic rock composed of recrystallized calcite or dolomite. Pure marbles are white but such impurities as silica or clay minerals result in variations of colour. Marble is extensively used for building purposes and ornamental use; the pure white marble from Carrara in Italy is especially prized by sculptors. The term is applied commercially to any limestone or dolomite that can be cut and polished.

Geology and Earth Sciences

Non-foliated, metamorphosed limestone which is produced by recrystallization and is hard enough to take a polish. The hardest and most attractive marbles have been used in statuary and for building since antiquity and are still quarried, e.g. from the Carrara quarry which supplied Michelangelo. The statue of Abraham Lincoln at the Lincoln Memorial, Washington, DC, is made from marble quarried in Georgia, USA. Marbles may be variously coloured or banded, depending on their chemical and mineralogical composition (mostly calcite), e.g. Carrara marble is pure white, but Siena marble, quarried in Tuscany, has red mottling.

单词	marble
释义	marble Chemistry A metamorphic rock composed of recrystallized calcite or dolomite. Pure marbles are white but such impurities as silica or clay minerals result in variations of colour. Marble is extensively used for building purposes and ornamental use; the pure white marble from Carrara in Italy is especially prized by sculptors. The term is applied commercially to any limestone or dolomite that can be cut and polished. Geology and Earth Sciences Non-foliated, metamorphosed limestone which is produced by recrystallization and is hard enough to take a polish. The hardest and most attractive marbles have been used in statuary and for building since antiquity and are still quarried, e.g. from the Carrara quarry which supplied Michelangelo. The statue of Abraham Lincoln at the Lincoln Memorial, Washington, DC, is made from marble quarried in Georgia, USA. Marbles may be variously coloured or banded, depending on their chemical and mineralogical composition (mostly calcite), e.g. Carrara marble is pure white, but Siena marble, quarried in Tuscany, has red mottling.
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