calc-spar Min.
(ˈkælkˈspɑː(r))
[see calc-.]
Calcareous spar or rhombohedral crystallized carbonate of lime.
| 1822 Mrs. Lowry Convers. Min. II. 28 Most of the fine calcspar of Derbyshire is of a deep topaz yellow colour. 1850 Daubeny Atom. The. viii. (ed. 2) 267 Why..do the particles of carbonate of lime, assume sometimes the form of calc-spar, sometimes of arragonite? |