Two-phase inclusion in amethyst, Brazil
Inclusions of hematite in feldspar (sunstone), India
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Colour zoning in ruby from Mong-Shu, Burma
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Inclusions of gilalite aggregates in rock crystal from Brazil
Inclusions of hematite in aquamarine, Tanzania
Stress fissure («sun spangle») in baltic amber

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