Bubbles and swirls in moldavite (natural glass)
Structure in a healing fissure in topaz from Brazil
Dendrites in agate
Colour zoning in ruby from Mong-Shu, Burma
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Agate from Reichweiler, Germany
Inclusions of gilalite aggregates in rock crystal from Brazil
Stress fissure («sun spangle») in baltic amber

Impressum

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