Dims: 5.6 x 3.9 x 3.3" (14.2 x 9.9 x 8.4 cm)
Wt: 1 lb., 5.6 oz. (613 g)
Minas Gerais, Brazil
Scores of intergrown Muscovite "books" make up the bulk of this large hand specimen. While many of the more exposed books show obvious damage, an impressive number are intact. They achieve diameters of 1.5" (3.8 cm) or more and thicknesses of 0.1" (3 mm). Their form is generally very good, as most of the intact books have a regular hexagonal outline. Their edges are well-defined and their faces are smooth and clean, possessing the standard pearly luster. All have a brown color with a subtle red tinge, and though some of the thinner books may be translucent, most are essentially opaque. Besides the Muscovite there are a number of dark green-brown apatites that are in good condition and have moderately good hexaogonal prismatic form. They have a bright, vitreous luster and are opaque. There is no host rock present on the specimen.