Inclusion of apatite in ruby from Tanzania
Colour zoning in ruby from Mong-Shu, Burma
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Structure in a healing fissure in topaz from Brazil
Agate from Reichweiler, Germany
«Red fox agate» from Patagonia, Argentina
Midge included in amber from the Baltic coast, polarised light
Partially etched diamond crystal

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