Dumortierite in rock crystal, Brazil, polarised light
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Two-phase inclusions in sapphire, Sri Lanka
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Midge included in amber from the Baltic coast, polarised light
Twin-crystal of chrysoberyl
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers

Zone interne

Cette zone est disponible uniquement aux membres.