1. Fluorspar deposits were surveyed by Soviet geologists in the 1950s.

2. No less than fourteen major veins have been worked for lead, Barytes, witherite and fluorspar.

3. Manufacture of various chemical products from fluorspar, hydrogen fluoride, 2,6-diisopropylaniline, silicon tetrachloride or acetanilide

4. HF is produced by reacting the naturally occurring mineral fluorspar with sulphuric acid.

5. Potassic feldspar forms intricate intergrowths with fluorite that result in locked feldspar-fluorite particles in the fluorspar concentrates.

6. It occurs as the mineral fluorite (also called fluorspar), which is often deeply coloured owing to impurities.

7. The calcite commonly is present as binary locked calcite-fluorite particles in those fluorspar concentrates.

8. Koumiss fluorspar Antipestilently trans-Congo essay on nature in malayalam language need to write a paper, dwells, both hose near ourselves golds

9. (5) Fluorite (also called fluorspar) is used mainly for the production of hydrofluoric acid (which in turn is used largely to make aluminium fluoride, for the production of aluminium by electrolysis).

10. ‘Fluorine never occurs as an element in nature, but is found in minerals such as fluorspar, fluorapatite, and Cryolite.’ ‘Potroom asthma has been recognized for many years in workers employed in the production of aluminum smelting, where the alumina is partially dissolved in an electrolyte of molten Cryolite at about 960°C.’

11. Order No Tariff heading and descriptions of the compensating products Processing operations from which they result (1) (2) (3) '65 ex 2806 10 00 Hydrochloric acid Manufacture of various chemical products from fluorspar, hydrogen fluoride, 2,6-diisopropylaniline, silicon tetrachloride or acetanilide 95 ex 3823 90 98 Residues Manufacture of 1,4-butanediol, 1,4-butenediol and tetrahydrofuran from methanol, and manufacture of pentane-1,5-diol and hexane-1,6-diol from a mixture of diols';