Colour zoning in ruby from Mong-Shu, Burma

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

«Red fox agate» from Patagonia, Argentina

Structure in a healing fissure in topaz from Brazil

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

Two-phase inclusions in tourmaline from Namibia

Spinel crystal in dolomite marble, Burma

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

Fluid inclusions in quartz with bituminous daughter minerals, China