Muscovite, Quartz

Unknown Owner

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Two "books" of large, pearlescent, tan muscovite crystals (the larger book is over 8 cm across!), lean out dramatically from one another on quartz matrix. They have a pretty, shimmering silver appearance, like fish scales, caused by the stepped-growth. Old material. Ex. Richard Hauck Collection. Probably from the old Conselheiro Pena locale.