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Two variscite cabochons from central Tajikistan
Variscite from Central Tajikistan: Preliminary Results

Andrey K. Litvinenko, Elena S. Sorokina, Stefanos Karampelas, Nikolay N. Krivoschekov, and Roman Serov, April 28, 2016

A look at the gemmological properties and chemical composition of this light blue to light green to green gem material, which is suitable for cabochon cutting.

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Dalmatian stone samples
True Colours of “Dalmatian Jasper”

Tomasz Powolny and Magdalena Dumańska-Słowik, November 8, 2017

Discusses the mineralogical composition and provenance of this spotted decorative gemstone.

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The internal structures of natural pearls from the marine mollusk Pinctada maxima are the subject of the lead article in this issue. The scattered loose pearls on the cover are from Paspaley’s natural pearl collection, which includes one discovered in the 1970s at the Eighty Mile Beach fishing grounds
G&G Spring 2021 Edition
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