Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Fire opal, Mexico

Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania

Colour zoning in ruby from Mong-Shu, Burma

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

Structure in a healing fissure in topaz from Brazil

«Red fox agate» from Patagonia, Argentina

Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania

Inclusions of fossil plant debris in opal from Wollo, Ethiopia