Spinel crystal in dolomite marble, Burma
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Dendrites in agate
Twin-crystal of chrysoberyl
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Inclusion of apatite in ruby from Tanzania
Two-phase inclusions in tourmaline from Namibia
Partially etched diamond crystal

Zone interne

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