Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light

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

Two-phase inclusion in amethyst, Brazil

Inclusions of hematite in aquamarine, Tanzania

Partially etched diamond crystal

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Fire opal, Mexico

«Red fox agate» from Patagonia, Argentina

Two-phase inclusions in tourmaline from Namibia