Bubbles and swirls in moldavite (natural glass)
Spinel crystal in dolomite marble, Burma
Inclusions of hematite in aquamarine, Tanzania
Inclusions of hematite in feldspar (sunstone), India
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Twin-crystal of chrysoberyl
Natural etching structure on a crystal face of diamond (trigons), polarised light
Dendrites in agate

Zone interne

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