A System of Mineralogy

A System of Mineralogy

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1868 edition. Excerpt: ...198); 28, Paykull (CEfv. Ak. H. Stockh., 1866); Before purification the silica obtained by him was for 2, 3630; 3, 4621--5415; 4, 49-39; 5, 4136 p. c. Nos. 3, 4, 5, 6 were large opaque crystals. He observes that all staurolite contains titanic acid, and that some magnesia is present. Pyr., etc.--B.B. infusible, excepting the manganesian variety (anal. 28), which fuses easily to a black magnetic glass. With the fluxes gives reactions for iron, and sometimes for manganese. Imperfectly decomposed by sulphuric acid. Obs.--Usually found in mica schist, argillaceous schist, and gneiss; often associated with garnet, cyanite, and tourmaline. Occurs with cyanite in paragoniie schist, at Mt. Campione, Switzerland, in polished, brown, translucent crystals; at the Greiner mountain, Tyrol, in simple crystals associated with cyanite, and sometimes appearing as a continuation of its crystals, parallel with them; near Lake Como; in the Tyrol; at Goldenstein in Moravia, brown and translucent; in large twin crystals in Brittany; at Tornduff and near Killiney in Ireland; at Oporto, St. Jago de Gompostella, and at other localities mentioned above. Abundant throughout the mica slate of New England. In Maine, at Windham, near the bridge, the mica slate is filled with large crystals; also at Mt. Abraham, Hartwell, and Winthrop. In JV. Hamp., brown and large cryst. at Franconia; at Lisbon, abundant in mica slate; on the shores of Mink Pond, loose in the soil; at Grantham, 2 m. from Meriden, of a gray color. In Vermont, at Cabot. In Mass., at Chesterfield, in fine crystals. In Conn., at Bolton, Vernon, Litchfield, Stafford, and Tolland. In New York, small crystals at the Foss ore bed in Dover, Duchess Co.; also three and a half miles from New York city, on the Hudson. In...show more

Product details

  • Paperback | 504 pages
  • 189 x 246 x 26mm | 889g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236557557
  • 9781236557551