Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

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

«Red fox agate» from Patagonia, Argentina

Twin-crystal of chrysoberyl

Fire opal, Mexico

Dendrites in agate

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

Inclusions of gilalite aggregates in rock crystal from Brazil

Structure in a healing fissure in topaz from Brazil