Midge included in amber from the Baltic coast, polarised light

Two-phase inclusions in tourmaline from Namibia

Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil

Fluid inclusions in quartz with bituminous daughter minerals, China

Dumortierite in rock crystal, Brazil, polarised light

Inclusions of gilalite aggregates in rock crystal from Brazil

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

Inclusion of apatite in ruby from Tanzania

Fire opal, Mexico