Fluid inclusions in quartz with bituminous daughter minerals, China

«Red fox agate» from Patagonia, Argentina

Midge included in amber from the Baltic coast, polarised light

Colour zoning in ruby from Mong-Shu, Burma

Two-phase inclusion in amethyst, Brazil

Inclusions of gilalite aggregates in rock crystal from Brazil

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

Twin-crystal of chrysoberyl

Bubbles and swirls in moldavite (natural glass)