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Ch. 6: Tourmaline

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TOURMALINE.
257
near Bodenmays, at Karinbrida in Sweden, and near Bo-vey in Devonshire. Small brilliant crystals are met with, imbedded in decomposed felspar, at Andreasberg, in the Hartz mountains, forming the variety called aphrigite. Ru-bellite occurs in a species of lithomarge, near Ekaterinen-burg in Siberia ; pale yellowish-brown crystals are found in talc at Windisch Kappell, in Carinthia; white and varie­gated colored specimens come from St. Gothard and Sibe­ria, the first imbedded in dolomite.
In the United States, some magnificent specimens of red and green tourmalines were found in 1829 at Paris, State of Maine; some transparent crystals from that locality ex­ceed two inches in diameter, and very frequently one inch, and present a clear red color internally, surrounded by green, or are red at one extremity and green at the other. Blue and pink varieties, most commonly imbedded in lep-idolite, are yet occasionally found in this locality.
Red and green tourmalines occur also at Chesterfield, Mass., in a narrow vein of granite traversing gneiss; the crystals are commonly small and curved, nearly opaque, and exceedingly frangible. Green crystals often contain distinct prisms of a. red color, especially when they occur in smoky quartz; blue tourmalines also occur at this locality, and are accompanied by albite.
The Russian Mineralogical Museum was supplied, in 1832, by its minister, Baron Crudner, with specimens of fifty pounds weight, containing the rock of green and red tourmalines, from the Chesterfield locality.
At Goshen, Mass., similar varieties occur, and the blue tourmaline is met with in greater perfection; very perfect crystals, of a dark-brown color, occur imbedded in mica slate, at Monroe, Conn.; the crystals are commonly from one to two inches long, and nearly as broad, and uniformly they are perfectly terminated at the two extremities.
Ch. 6: Tourmaline Page of 515 Ch. 6: Tourmaline
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