Gems and Minerals from the Sub-Arctic
Circumnavigate the boreal reaches of the globe to explore gems from polar regions.
Pyrope Garnet and Montana Sapphires Highlight Winter 2015 G&G
G&G Brief presents an overview of the content of the Winter 2015 issue of Gems & Gemology.
Pleochroism in Faceted Gems: An Introduction
Describes the phenomenon of pleochroism and its complex effect on the appearance of coloured stones.
Multicoloured Bismuth-bearing Tourmaline from Lundazi, Zambia
Tourmalines from an alluvial deposit near Lundazi in Zambia consist of colour-zoned pink/colourless/yellow-green “watermelon” nodules.
Abstracts; Summer 1991
From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.
Abstracts; Winter 2009
This article, from the Winter 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.