Colour zoning in ruby from Mong-Shu, Burma

Bubbles and swirls in moldavite (natural glass)

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

«Red fox agate» from Patagonia, Argentina

Dumortierite in rock crystal, Brazil, polarised light

Two-phase inclusions in sapphire, Sri Lanka

Inclusions of hematite in feldspar (sunstone), India

Inclusions of hematite in aquamarine, Tanzania

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