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

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

Inclusions of hematite in feldspar (sunstone), India

Two-phase inclusions in sapphire, Sri Lanka

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

Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia

Dendrites in agate

Fluid inclusions in quartz with bituminous daughter minerals, China

Spinel crystal in dolomite marble, Burma