Although dolomite and potassium feldspar may have similar colors and both exhibit welldeveloped cleavage, ... hardness greater than glass, ...
Feldspar is a common raw material used in glass making. It is an important ingredient in the glass sand batch. Often, feldspar can comprise of 10 to 15% of the batch.
An overview of the most common mineral in the Earth's crust, feldspar how to identify it and further information.
FELDSPAR USE IN GLASS MAKING YouTube. The feldspar specifiion of feldspar used in manufacturing of Feldspar Powder is an important ingredient in .