This 18th-century gilded wood table features an amethyst top and other gemstones. Native the repertoire of the Palazzo Bonacossi. Photograph by Sailko. License is granted under CC By-SA 3.0.
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Although quartz gems are an extremely durable, amethysts room sensitive to excessive heat.
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Furthermore, inclusions can make this gems prone to shattering in ultrasonic cleaners. Avoid mechanical cleaning systems and also stick to a soft brush, soft detergent, and warm water, instead.