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Schweizerische Gemmologische Gesellschaft
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Inclusions of hematite in aquamarine, Tanzania
Partially etched diamond crystal
«Red fox agate» from Patagonia, Argentina
Two-phase inclusions in sapphire, Sri Lanka
Stress fissure («sun spangle») in baltic amber
Inclusions of gilalite aggregates in rock crystal from Brazil
Structure in a healing fissure in topaz from Brazil
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania

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  • Gemmology
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