Fire opal, Mexico
«Red fox agate» from Patagonia, Argentina
Fluid inclusions in quartz with bituminous daughter minerals, China
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Agate from Anzi, Maroc
Natural etching structure on a crystal face of diamond (trigons), polarised light
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Partially etched diamond crystal

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