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left-handed quartz
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left-handed quartz

mineral

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characteristics

  • Smoky quartz from St. Gotthard, Switz.
    In silica mineral: Quartz

    …to occur as two types: left-handed or right-handed (enantiomorphism). Left-handed quartz is less than 1 percent more abundant than right-handed quartz. The structural tetrahedrons spiral upward through the crystal in the sense of the handedness parallel to the c axis. Similarly, if polarized light is transmitted by a quartz crystal…

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