Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of gilalite aggregates in rock crystal from Brazil
Fire opal, Mexico
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Two-phase inclusions in tourmaline from Namibia
«Red fox agate» from Patagonia, Argentina
Midge included in amber from the Baltic coast, polarised light
Natural etching structure on a crystal face of diamond (trigons), polarised light

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