Structure in a healing fissure in topaz from Brazil

«Red fox agate» from Patagonia, Argentina

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Midge included in amber from the Baltic coast, polarised light

Stress fissure («sun spangle») in baltic amber

Dumortierite in rock crystal, Brazil, polarised light

Agate from Reichweiler, Germany

Inclusions of hematite in feldspar (sunstone), India

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