Inclusions of fossil plant debris in opal from Wollo, Ethiopia

Inclusions of gilalite aggregates in rock crystal from Brazil

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

Twin-crystal of chrysoberyl

Fluid inclusions in quartz with bituminous daughter minerals, China

Spinel crystal in dolomite marble, Burma

Midge included in amber from the Baltic coast, polarised light