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

Inclusions of gilalite aggregates in rock crystal from Brazil

Inclusion of apatite in ruby from Tanzania

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

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

Structure in a healing fissure in topaz from Brazil

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

Two-phase inclusion in amethyst, Brazil

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