Colour zoning in ruby from Mong-Shu, Burma
Inclusions of gilalite aggregates in rock crystal from Brazil
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Structure in a healing fissure in topaz from Brazil
Inclusion of apatite in ruby from Tanzania
Fire opal, Mexico
Partially etched diamond crystal
Agate from Anzi, Maroc

Impressum

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