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

Bubbles and swirls in moldavite (natural glass)

Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania

Natural etching structure on a crystal face of diamond (trigons), polarised light

Fire opal, Mexico

Two-phase inclusion in amethyst, Brazil

Inclusions of gilalite aggregates in rock crystal from Brazil

Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Spinel crystal in dolomite marble, Burma