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Structure in a healing fissure in topaz from Brazil
Dumortierite in rock crystal, Brazil, polarised light
Fluid inclusions in quartz with bituminous daughter minerals, China
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of gilalite aggregates in rock crystal from Brazil
Colour zoning in ruby from Mong-Shu, Burma
Stress fissure («sun spangle») in baltic amber
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
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