use of bal mill for powdering felspar mineral
Melting Points of Rocks Igneous rocks form through the crystallization of magma.There is a considerable range of melting temperatures for different compositions of magma. All the silicates are molten at about 1200 C (when a part of rock) and all are solid when cooled to about 600 C. Often the silicates are grouped as high, medium and low-melting point solids
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