Fluid inclusions in quartz with bituminous daughter minerals, China

Structure in a healing fissure in topaz from Brazil

Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers

Twin-crystal of chrysoberyl

Two-phase inclusions in sapphire, Sri Lanka

Fire opal, Mexico

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Two-phase inclusions in tourmaline from Namibia

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