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List of Articles
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Gemmology Magazine Autumn 2010 ENGLISH ARTICLE TO BE PUBLISHED SOON —read more |
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CVD-GROWN SYNTHETIC PINK MELEE DIAMOND - GAAJ-ZENHOKYO Lab Alert
—read more |
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Iridescent Nuumite GAAJ-ZENHOKYO laboratory recently had an opportunity to identify black cabochon stones called “nuumite” from Mauritania. —read more |
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Trapiche spinel We recently obtained spinel samples with trapiche appearance for research, —read more |
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The forefront of diamond synthesis Vol.4: Application of Diamond-like Carbon —read more |
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Natural Cavansite and Natural Pentagonite Cavansite and pentagonite - How to distinguish beteen them —read more |
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The forefront of diamond synthesis Vol. 3 Development of gem quality synthetic diamond and identification techniques. —read more |
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New Geological Origin: Ruby from Mozambique GAAJ-ZENHOKYO tested rubies allegedly from Mozambique —read more |
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The study of various beads used for cultured pearls GAAJ-ZENHOKYO investigated the bead materials that currently exist —read more |
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Stibnite in rock crystal
We had an opportunity to identify quartz including stibnite.
—read more |