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

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Spinel crystal in dolomite marble, Burma

Inclusions of hematite in aquamarine, Tanzania

Midge included in amber from the Baltic coast, polarised light

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

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

Bubbles and swirls in moldavite (natural glass)

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