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

Agate from Anzi, Maroc

Spinel crystal in dolomite marble, Burma

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

Inclusion of apatite in ruby from Tanzania

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

Agate from Reichweiler, Germany

Two-phase inclusions in sapphire, Sri Lanka

Fire opal, Mexico