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Sphalerite inclusion in Namibian demantoid.
Sphalerite Inclusions in Namibian Demantoid

A rare inclusion scene is found in a garnet crystal from Namibia.

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Synthetic quartz crystal with inclusion suite of almandine and pyrope.
Synthetic Quartz: A Designer Inclusion Specimen

A collectable inclusion specimen is created by introducing garnets to synthetic quartz during the growth process.

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Red heart-shaped pyrope inclusion in diamond.
Red Heart Inclusion in Diamond

Under magnification, a round brilliant diamond features a pyrope garnet inclusion in an aesthetically pleasing shape.

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Quartz cabochon with garnet “inclusion”
Garnet Inclusion Illusion

A quartz double cabochon showcases a garnet placed to imitate an inclusion.

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Multi-colored gems are superimposed on an image of glacier peaks.
Article
Gems and Minerals from the Sub-Arctic

Circumnavigate the boreal reaches of the globe to explore gems from polar regions.

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Three pieces of labradorite with yellow, blue and green flashes of color.
Article
Optical Effects of Phenomenal Cabochons

Learn how the structure, inclusions and properties of some gemstones interact with light to create unusual visual effects.

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Diopside Needles as Inclusions in Demantoid Garnet from Russia: A Raman Microspectrometric Study

Straight, acicular, colourless solid inclusions in demantoid garnet from the Ural Mountains of Russia were investigated by laser Raman microspectrometry.

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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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Article
Gem Mining in Cambodia

How to examine a sapphire crystal for cracks and inclusions.

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Abstract Header from the 2009 issue of Gems & Gemology
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.

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