Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia

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

Partially etched diamond crystal

Dumortierite in rock crystal, Brazil, polarised light

Dendrites in agate

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

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Bubbles and swirls in moldavite (natural glass)

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