calc-spar

American  

[kalk-spahr] / ˈkælkˌspɑr /

Or calcspar

noun

1. calcite.

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Etymology

Origin of calc-spar

1815–25; < Swedish kalkspat calc-spar; t > r by association with spar ³; see calc-

Example Sentences

The amygdaloidal masses, contained in the amygdaloid, are either entirely pistacite, or pistacite enclosing calc-spar.

From A Journey from Prince of Wales's Fort in Hudson's Bay to the Northern Ocean in the Years 1769, 1770, 1771, 1772 New Edition with Introduction, Notes, and Illustrations by Tyrrell, J. B.

In calc-spar, as just stated, the ordinary ray is the most refracted.

From Six Lectures on Light Delivered In The United States In 1872-1873 by Tyndall, John

The latter advantage, however, occurs only when the difference between the indices of refraction for the ordinary and extraordinary rays in the particular crystal made use of is greater than in calc-spar.

From Scientific American Supplement, No. 441, June 14, 1884. by Various

The mineral had, however, long been known under the names calcareous spar and calc-spar, and the beautifully transparent variety called Iceland-spar had been much studied.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" by Various

The end surfaces and also the cut carried through the prism are parallel to the principal axis of the calc-spar.

From Scientific American Supplement, No. 441, June 14, 1884. by Various