Tag: mineral
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Quartz Jewellery and Accessories: Beautiful Pieces for Quartz Lovers
Quartz jewellery and accessories from necklaces, bracelets, rings and earrings to prayer beads and anklets: 32 types dominated by rose quartz, amethyst…
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Amethyst: The Violet Member of the Quartz Family
Why amethyst is violet, how heat turns it into citrine, where it is found — including the documented Turkish localities — and…
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Why Is Lake Salda Turquoise? The Geology Behind Turkey’s White Shores
Lake Salda’s turquoise colour and white carbonate shores come from highly alkaline, magnesium-rich water interacting with hydromagnesite structures and microbial life —…
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Opal: The Rainbow Trapped in Stone
Opal’s play-of-colour comes from billions of microscopic silica spheres that scatter light into every colour of the rainbow. From Australia’s black opals…