Lexic.us

Definition of Calcspar

1. n. Same as Calcite.

Definition of Calcspar

1. a calcite [n -S] - See also: calcite

Medical Definition of Calcspar

1. A doubly refracting mineral used in the manufacture of polarizing prisms. It is uniaxial negative and in the trigonal diversion of the hexagonal system of crystals. Its indexes are epsilon =1.486, omega =1.658, its hardness is 3 on the Mohr scale and specific gravity 2.711. See: balsam, Canada. (05 Aug 1998)

Lexicographical Neighbors of Calcspar

Literary usage of Calcspar

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Dictionary of Chemistry and the Allied Branches of Other Sciences by Henry Watts (1870)
"The primary form, + R, seldom occurs as an unbroken crystal in pure calcspar, but is the prevailing form of bitter-spar ..."

2. The Nature of Ore Deposits by Richard Beck (1905)
"... calcspar and dolomite; in the other, as at Annaberg, barite and fluorspar are added to the first named minerals. The ore minerals, on the contrary, ..."

3. The Study of Rocks: An Elementary Text-book of Petrology by Frank Rutley (1888)
"(22) Apatite. (23) Rutile. (24) Cassiterite. (25) calcspar. (26) Quartz, &c. (27) Magnetite. (28) Titaniferous iron. (29) Hematite. (30) Limonite. ..."

4. A Dictionary of Science: Comprising Astronomy, Chemistry, Dynamics by George Farrer Rodwell (1873)
"Iceland Spar: or, calcspar. A form of carbonate of lime which is found in beautifully crystallized masses. ..."

Other Resources: