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tourmaline |
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tourmalineHard, brittle mineral, a complex silicate of various metals, but mainly sodium aluminium borosilicate. Small tourmalines are found in granites and gneisses. The common varieties range from black (schorl) to pink, and the transparent gemstones may be colourless (achromatic), rose pink (rubellite), green (Brazilian emerald), blue (indicolite, verdelite, Brazilian sapphire), or brown (dravite). How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| His vest was rose-colored satin, with tourmaline buttons. Her eyes sparkled as two diamonds, and her lips were tinted like a tourmaline. Coral patches uprose everywhere from the turquoise depths, running the gamut of green from deepest jade to palest tourmaline, over which the sea filtered changing shades, creamed lazily, or burst into white fountains of sun-flashed spray. |
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tourmaline
