Phlogopite

Unknown Owner

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A HUGE cleavage section of mica variety phlogopite, from Ontario. These are old classics, and everybody knows they came out once upon a time but seldom do you see one so big and pure and fine. This is the kind of clean muscovite plates that could have been used for mica windows and lampshades in the old days. It is impressive mineralogically and historically. Weight is 4.6 pounds!