Colour zoning in ruby from Mong-Shu, Burma
Inclusions of gilalite aggregates in rock crystal from Brazil
Two-phase inclusions in sapphire, Sri Lanka
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Twin-crystal of chrysoberyl
Agate from Reichweiler, Germany
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Dendrites in agate

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