Stress fissure («sun spangle») in baltic amber
Two-phase inclusion in amethyst, Brazil
Structure in a healing fissure in topaz from Brazil
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Agate from Anzi, Maroc
Spinel crystal in dolomite marble, Burma
Inclusions of hematite in aquamarine, Tanzania

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