Inclusions of gilalite aggregates in rock crystal from Brazil

Agate from Anzi, Maroc

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

Two-phase inclusions in tourmaline from Namibia

Inclusions of fossil plant debris in opal from Wollo, Ethiopia

Inclusion of apatite in ruby from Tanzania

Two-phase inclusions in sapphire, Sri Lanka

«Red fox agate» from Patagonia, Argentina

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