Twin-crystal of chrysoberyl

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

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

Stress fissure («sun spangle») in baltic amber

Inclusions of gilalite aggregates in rock crystal from Brazil

«Red fox agate» from Patagonia, Argentina

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

Inclusions of hematite in feldspar (sunstone), India

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