Partially etched diamond crystal
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Fire opal, Mexico
Inclusion of apatite in ruby from Tanzania
Spinel crystal in dolomite marble, Burma
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Bubbles and swirls in moldavite (natural glass)

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