IS MICA A FELDSPAR SECRETS

is mica a feldspar Secrets

Petalite has the highest Li2O/Al2O3 ratio among pure minerals. It will also be a useful flux additive because it boosts their resistance to heat shock. Petalite itself features a in the vicinity of-zero coefficient of thermal expansion at about seven-hundred °C and it is a beneficial element of mineral alloys as a result of its thermal properties

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