THIS PSAT VOCABULARY QUIZ IS PERFECT PRACTICE FOR THE REAL TEST
Example sentences from the Web for calc-spar
The materials employed are sand, sulphate of soda, nitrate of soda, calcspar and in some works carbonate of barium.
He was examining an especially fine specimen of calcspar, when it fell from his hands and was broken.Catholic Churchmen in Science|James J. Walsh
These reticul are commonly in the slate of calcspar, crystallized in minute crystals.