Spinel crystal in dolomite marble, Burma
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Two-phase inclusion in amethyst, Brazil
Two-phase inclusions in sapphire, Sri Lanka
Two-phase inclusions in tourmaline from Namibia
Inclusions of hematite in aquamarine, Tanzania
Stress fissure («sun spangle») in baltic amber
Two-Phase inclusions and rutile needles in rock crystal from Brazil

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