名词
中文翻译：钙石矿
同义词：
['calcite', 'calcite mineral']
例句：
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1.The crystals of this mineral are used in jewelry making.
这种矿物的晶体用于制作珠宝。
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2. The calcified layer is a common feature of many ancient cave systems.
钙化层是许多古代洞穴系统常见的特征。
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3. The calcified shells of the mollusks are often used as building material.
软体动物的钙化壳常常被用作建筑材料。