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Abstracts; Summer 1991

From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.

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Ruby-bearing gravel bed in Mugloto.
Update on Gemstone Mining in Northern Mozambique

Recounts an expedition to Mozambique’s important deposits of ruby, spinel and tourmaline, which have yet to be fully explored.

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A multi-diamond brooch.
2019 in Review: Diamond Trade Begins Recovery, Jewellery Retail Sector Blooms Late and Extraordinary Auction Sales

2019: A year of ups and downs in the gem and jewellery industry, including diamonds, retail, auction sales and laboratory-grown diamonds.

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