Two-phase inclusions in tourmaline from Namibia
Colour zoning in ruby from Mong-Shu, Burma
Natural etching structure on a crystal face of diamond (trigons), polarised light
«Red fox agate» from Patagonia, Argentina
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Structure in a healing fissure in topaz from Brazil
Two-phase inclusion in amethyst, Brazil
Inclusions of gilalite aggregates in rock crystal from Brazil

Zone interne

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