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calc-spar

or calc·spar

[kalk-spahr]
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noun
  1. calcite.
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Origin of calc-spar

1815–25; < Swedish kalkspat calc-spar; t > r by association with spar3; see calc-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for calc-spar

Historical Examples

  • He invented a machine for the cutting of crystals from calc-spar.

    History of the Sixteenth Connecticut Volunteers

    B. F. Blakeslee

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

  • Argentine, a silvery-white slaty variety of calc-spar, containing a little silica with lamin usually undulated.

  • Calc-spar will not supply the place of flint, nor lead the place of steel, in the production of fire by collision.

  • It is harder than gypsum, but not so hard as calc-spar; flexible and elastic; spec.