Inclusion of apatite in ruby from Tanzania
Spinel crystal in dolomite marble, Burma
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Dumortierite in rock crystal, Brazil, polarised light
Colour zoning in ruby from Mong-Shu, Burma
Stress fissure («sun spangle») in baltic amber
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil

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