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Friday, April 26th, 2024
the Fourth Week after Easter
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Bible Dictionaries
Iceland Spar

Webster's Dictionary

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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.

Bibliography Information
Webster, Noah. Entry for 'Iceland Spar'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​i/iceland-spar.html. 1828.
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