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Fluorspar, also known as fluorite or calcium fluoride (CaF2), is the calcium salt of hydrofluoric acid and a very widespread mineral that occurs primarily in granites and other volcanic rocks.
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Fluorspar is used in many different industries (see below). Metallurgical Fluorspar for instance, is used to aid the removal of impurities in the production of stainless steel and as a flux in metalworking. It lowers the melting point and so increases energy efficiency. The main application area for acid grade Fluorspar is the production of hydrogen fluoride by adding sulfuric acid. In addition, Fluorspar is used in the manufacture of Teflon® coatings and GORE-TEX® products.
Wollastonite is a naturally occurring, calcium silicate-based mineral that is present in the form of needle-like crystals or fibers. It is characterized by its high tempera...
Olivine is an iron and magnesium silicate, produced from the raw stone dunite/olivine.
Steel Fibers are small metal fibers made of steel. They typically have a length of a few millimeters to a few centimeters and a diameter of a few micrometers. In the refra...