Inclusion of apatite in ruby from Tanzania
Inclusion of apatite in ruby from Tanzania
Dumortierite in rock crystal, Brazil, polarised light
Dumortierite in rock crystal, Brazil, polarised light
Dendrites in agate
Dendrites in agate
Agate from Anzi, Maroc
Agate from Anzi, Maroc
Partially etched diamond crystal
Partially etched diamond crystal
Bubbles and swirls in moldavite (natural glass)
Bubbles and swirls in moldavite (natural glass)
Agate from Reichweiler, Germany
Agate from Reichweiler, Germany
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
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
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light