iceland spar
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iceland spar
中文翻译
[化] 冰洲石
[医] 冰岛晶石[矿](晶形碳酸钙)
英文解释
A transparent variety of calcite, the best of which is
obtained in Iceland. It is used for the prisms of the polariscope,
because of its strong double refraction. Cf. Calcite.