Two-phase inclusion in amethyst, Brazil
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Dumortierite in rock crystal, Brazil, polarised light
«Red fox agate» from Patagonia, Argentina
Inclusion of apatite in ruby from Tanzania
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of hematite in feldspar (sunstone), India

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