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

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

Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light

Two-phase inclusion in amethyst, Brazil

Agate from Anzi, Maroc

Inclusion of apatite in ruby from Tanzania

Fire opal, Mexico

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Inclusions of hematite in aquamarine, Tanzania