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Frequently Asked Questions (FAQ) / Green Amethyst and Prasiolite

Does GemSelect Sell Green Amethyst?

Green Amethyst Prasiolite
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Amethyst is by definition violet to purple colored transparent quartz. So there is really no such thing as green amethyst. The gem sometimes sold as 'green amethyst' is a misnomer and what gemologists actually refer to as 'prasiolite'. Prasiolite is a very rare leek-green variety of transparent quartz, so most of the prasiolite available today is actually produced by heating and/or irradiation of amethyst quartz, typically to round 500 degrees centigrade. Unfortunately, the green color of treated prasiolite is known to fade when exposed to strong sunlight, so peridot would be a much better choice in this color range. You may also see green quartz in a vivid mint green or blue-green hue, but this is almost always synthetic material produced by the hydrothermal method.

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