| Amethyst | ||||
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Amethyst is actually a form of Quartz - one of the most common 2substances on earth. Tiny amounts of iron and aluminum turn ordinary clear quartz into amethyst. All forms of quartz (including amethyst) are piezoelectric, making for important applications in electronics. Tourmaline is the only other gemstone that possesses this property. Amethyst ranges from pale to dark violet. The finest qualities of amethyst are a medium dark violet with a strong secondary red color. Darker shades of amethyst may display slight color fluctuations under different light sources. Amethyst of all qualities is available in all sizes and shapes. Light amethyst will be very low in per carat prices while even the finest qualities are still very reasonably priced. |