| 41. | The medium is usually a piezoelectric crystal such as quartz, tourmaline, or Rochelle salt.
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| 42. | If you had sand in your hair it shouldn't scratch a tourmaline coated surface.
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| 43. | :: : Tourmaline has a strong Pyroelectric effect and gives a charge separation when heated.
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| 44. | Tourmaline and garnet are also recorded.
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| 45. | A half mile out, the color is more of a tourmaline, a blue-green.
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| 46. | And he persuaded them to buy stones like aquamarines, tourmalines, garnets, opals and zircons.
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| 47. | Zambia is rich in both red and yellow tourmaline, which are relatively inexpensive in that country.
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| 48. | The Somerville Collection also consists of one of the largest collections of tourmaline in the Southern Hemisphere.
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| 49. | It occurs associated with cassiterite, arsenopyrite, molybdenite, tourmaline, topaz, rhodochrosite and fluorite.
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| 50. | China's Dowager Empress Cixi of Qing Dynasty highly prized the pink tourmaline mined in Pala.
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