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Glossary: Useful Terms Relating To Watches & Jewellery
Zircon
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A lustrous gemstone that comes in colours ranging from golden brown to red to violet to blue. Pure zircon is colourless, but most zircon stones are brown. Zircon stones can be heat-treated to become blue or colourless; sometimes, heat-treated stones revert to their original colour.
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Zoisite
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A grey-green mineral that occurs in cracks of igneous rock.
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