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

These shells are built up of little crystals of calc-spar, and to form these crystals the structural force had to deal with the intangible molecules of carbonate of lime.

From The Voice of Science in Nineteenth-Century Literature Representative Prose and Verse by Various

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

In addition, lead-bearing veins now and then crop up, the crystals of galena being disseminated through masses of fluor-spar, calc-spar, limestone and clay, which fill fissures between tilted walls of limestone and hard quartzose sandstone.

From Etidorhpa or the End of Earth. The Strange History of a Mysterious Being and The Account of a Remarkable Journey by Lloyd, John Uri

Its structure is compact, with little lustre, except from facets of disseminated calc-spar.

From Narrative of a Second Expedition to the Shores of the Polar Sea by Franklin, John

Dog-tooth Spar, a form of mineral calcium carbonate or calc-spar found in Derbyshire and other parts of England, and named from a supposed resemblance of its pointed crystals to a dog's tooth.

From The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde by Various