Agate from Reichweiler, Germany
Stress fissure («sun spangle») in baltic amber
Midge included in amber from the Baltic coast, polarised light
Inclusions of hematite in aquamarine, Tanzania
Spinel crystal in dolomite marble, Burma
Agate from Anzi, Maroc
Structure in a healing fissure in topaz from Brazil
Twin-crystal of chrysoberyl

Impressum

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