Inclusions of gilalite aggregates in rock crystal from Brazil

Dumortierite in rock crystal, Brazil, polarised light

«Red fox agate» from Patagonia, Argentina

Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light

Agate from Anzi, Maroc

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

Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil

Inclusions of hematite in feldspar (sunstone), India

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