How to Spot Heat-Treated Amethyst Sold as Citrine
Most bright orange citrine clusters in the mass market began as amethyst. Here are the visual clues and the nuance sellers often skip.
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Tag: <span>quartz</span>
Mineralogy, identification, care, lapidary craft, interiors and documented cultural history—with traditional beliefs clearly labelled as a separate subject.
How to Start a Crystal Collection Without Buying Everything
A first collection should teach you how minerals differ, not just give you fifteen colours of the same polished tower.
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