The Tourmaline: Its Relation as a Gem; Its Complex Nature; Its Wonderful Physical Properties, Etc., Etc.; with Special Reference to the Beautiful and Matchless Crystals Found in the State of Maine |
Contents
CHAPTER I | 13 |
LOCALITIES AND PECULIARITIES OF DEPOSITION AND DISTRI | 35 |
CHAPTER IV | 75 |
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Common terms and phrases
albite alexandrite alumina appear arrangement of color artificial light blast blue borax Brazil brown chrysoberyl composed cookeite corundum crimson crys crystals of tourmaline curious cut into gems dark degree depth diamond dichroism discovered display earth Elba electrical properties emerald-green exhibit explorer exposed faceted feet felspar force fragments garnet gem mines granite Hamlin Collection heat hill hues illuminating light inch in diameter inches in length known lapidaries ledge lepidolite limpid locality maline mass of quartz matrix mineralogists mines of Ceylon mountains MT MICA mysterious Nature nearly nodule observed obtained occur opaque oxide peculiarity perfect philosopher pink polariscope possess double refraction precious stones prisms rare minerals red tourmalines remarkable rubellite ruby sand sapphire schorl seen shades Siberia sides silica singular smoky quartz sometimes specimens spinel strange summit surface terminations tint tion tons of rock topaz tour tourma Ural Mountains viewed violet well-defined wonderful yellow yielded zircon