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

Two-phase inclusions in sapphire, Sri Lanka

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

«Red fox agate» from Patagonia, Argentina

Fluid inclusions in quartz with bituminous daughter minerals, China

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

Inclusions of hematite in aquamarine, Tanzania

Colour zoning in ruby from Mong-Shu, Burma

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