calc-spar

or calc·spar

[ kalk-spahr ]

Phonetic (Standard)IPA

noun

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

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

The minerals composing the veins are either quartz, calc-spar, or sulphate of baryta.

This mineral is tender, scarcely scratches calc-spar, and breaks easily with a waved conchoidal fracture.

The stone has a gray colour and bituminous smell, and contains much interspersed calc-spar.

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

April 19, 2024tortuous

[tawr-choo-uhs ]

Start each day with the Word of the Day in your inbox!

By clicking "Sign Up", you are accepting Dictionary.com Terms & Conditions and Privacy Policies.

Browse