Two-phase inclusions in sapphire, Sri Lanka

Colour zoning in ruby from Mong-Shu, Burma

Inclusions of fossil plant debris in opal from Wollo, Ethiopia

«Red fox agate» from Patagonia, Argentina

Inclusions of hematite in feldspar (sunstone), India

Two-Phase inclusions and rutile needles in rock crystal from Brazil

Fire opal, Mexico

Stress fissure («sun spangle») in baltic amber

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