Fire opal, Mexico
Two-phase inclusions in sapphire, Sri Lanka
Spinel crystal in dolomite marble, Burma
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Midge included in amber from the Baltic coast, polarised light
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Colour zoning in ruby from Mong-Shu, Burma
«Red fox agate» from Patagonia, Argentina

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