muscovite mica from a pegmatite near Coronel Murta, Minas Gerais, Brazil - display specimen It is also used as

It is also used as a filler in rubber and in paper

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during the Late Triassic according to one model

This well produced at three times the rate of vertical wells in the Yowlumne Field

muscovite mica from a pegmatite near Coronel Murta, Minas Gerais, Brazil - display specimen It is also used asmuscovite mica KAL3Si3O10(OH)2 Coronel Murta, Minas Gerais, Brazil Muscovite is a common rock forming mineral. In pegmatites, which are essentially giant crystal granitic rocks, muscovite forms large books and can be cleaved into large sheets. It is mined commercially for use as an insulator in transformers and electrical equipment. Scrap muscovite, small flakes, is used as a filler or extender in paints. Transparent in thin sheets, muscovite is