Inclusions of hematite in aquamarine, Tanzania

Inclusion of apatite in ruby from Tanzania

Spinel crystal in dolomite marble, Burma

«Red fox agate» from Patagonia, Argentina

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

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Inclusions of fossil plant debris in opal from Wollo, Ethiopia

Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania