Inclusions of hematite in aquamarine, Tanzania

Two-Phase inclusions and rutile needles in rock crystal from Brazil

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

Inclusions of fossil plant debris in opal from Wollo, Ethiopia

Two-phase inclusions in tourmaline from Namibia

Dendrites in agate

Midge included in amber from the Baltic coast, polarised light

Fire opal, Mexico

Dumortierite in rock crystal, Brazil, polarised light