Agate from Reichweiler, Germany

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

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

Structure in a healing fissure in topaz from Brazil

Dendrites in agate

Two-Phase inclusions and rutile needles in rock crystal from Brazil

Midge included in amber from the Baltic coast, polarised light

Fire opal, Mexico