Inclusions of gilalite aggregates in rock crystal from Brazil

Bubbles and swirls in moldavite (natural glass)

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

Colour zoning in ruby from Mong-Shu, Burma

Two-phase inclusions in sapphire, Sri Lanka

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

Dumortierite in rock crystal, Brazil, polarised light

Inclusions of hematite in aquamarine, Tanzania

Midge included in amber from the Baltic coast, polarised light