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

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

Inclusions of gilalite aggregates in rock crystal from Brazil

«Red fox agate» from Patagonia, Argentina

Dendrites in agate

Colour zoning in ruby from Mong-Shu, Burma

Spinel crystal in dolomite marble, Burma

Midge included in amber from the Baltic coast, polarised light

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan