Two-phase inclusion in amethyst, Brazil

«Red fox agate» from Patagonia, Argentina

Partially etched diamond crystal

Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers

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

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

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

Agate from Anzi, Maroc