Yellow transparent mimetite - known to collectors as one of the rarest faceted stones - purchased in Tuscon and likely to originate from Bolivia.
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Samples composed of lawsonite pseudomorphs were coated to make them appear deep green and imitate chromian lawsonite crystals.
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A summary of gemmological presentations from the 21st IMA General Meeting in Johannesburg.
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The uncommon occurrence of epigenetic malachite, as found in this quartz, can result in vivid green colour.
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