Twin-crystal of chrysoberyl

Bubbles and swirls in moldavite (natural glass)

Dendrites in agate

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

Agate from Anzi, Maroc

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Inclusions of fossil plant debris in opal from Wollo, Ethiopia

Two-phase inclusions in tourmaline from Namibia

Inclusions of hematite in aquamarine, Tanzania