Minerals Topics

Selected Virginia Minerals (Part 4)


• Both muscovite and biotite mica are extremely common in igneous and metamorphic rocks in the Blue Ridge and Piedmont.

• Muscovite mica was previously mined in Henry and Pittsylvania Counties.

• Excellent muscovite mica specimens have been found in pegmatites in Amelia and Bedford Counties.Mica
Micas (Left: photograph by Stan Johnson; right: photograph courtesy of the Virginia Division of Geology and Mineral Resources)

MapThese muscovite mica crystals were found in a pegmatite in Amelia County.  Muscovite, also called isinglass, is used in electric insulators and paint.