Partially etched diamond crystal

Colour zoning in ruby from Mong-Shu, Burma

Inclusions of gilalite aggregates in rock crystal from Brazil

Dendrites in agate

Two-Phase inclusions and rutile needles in rock crystal from Brazil

Agate from Anzi, Maroc

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Dumortierite in rock crystal, Brazil, polarised light

«Red fox agate» from Patagonia, Argentina