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Sajan sarthak Best Answer
yes like anorthite has a melting temperature 1553 ° c it also freezes from melt at this temperature. if it's pure melt means no other mineral only anorthitic melt. incase impurity comes like binary,ternary means more than two elements. the freezing temperatures decreases . from melting to freezing there will be a range of temperature.
if there is an impurity with that mineral then melting point would be different from that of formation point
See these figures