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Spiral structure in a Colombian emerald
Origine et croissance des minéraux des fissures alpines dans les Alpes suisses occidentales
Publication

Origin and growth of alpine fissure minerals in the western Swiss Alps: record of fluid flow during exhumation

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A Lalique quartz pendant in polarized light
Publication

A Lalique quartz pendant in polarized light

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Beads cut from gastropod mollusc shell disguised in a coral necklace
Publication

Beads cut from gastropod mollusc shell disguised in a coral necklace

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Multi-treated HPHT-grown synthetic diamonds
Micrographs, Publication

HIH: Multi-treated HPHT-grown synthetic diamonds showing some characteristics of natural diamonds

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Natural pearls of the Veneridae family
Publication

Natural pearls of the Veneridae family

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