Blog: Quartz and feldspar
Diamonds and gemstones: guides to choosing, treatments, care and gemmological news.
6 articles in category “Quartz and feldspar” · reset filters
Ametrine: violet and yellow in one gemstone
Ametrine combines amethyst and citrine colour zones. Appreciate its cut and verify material identity.
Rose quartz: choosing a translucent stone without exaggerated claims
Appreciate rose quartz through colour, appearance and workmanship. What to check in cabochons, strands and carvings.
Sunstone: feldspar sparkle and confusion with decorative glass
Sunstone can show aventurescence. Observe the effect in motion and clarify decorative trade names.
Moonstone: adularescence and choosing a cabochon
Moonstone’s moving glow is an optical effect. Learn how to view it and clarify offers described as rainbow moonstone.
Natural or heat-produced citrine: what buyers should know
Citrine is yellow-to-orange quartz. Discuss colour origin and understand why it should not be confused with topaz.
Amethyst: choosing colour and verifying natural origin
Amethyst is violet quartz. Learn to assess colour distribution and what a photograph cannot establish.
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