Bubbles and swirls in moldavite (natural glass)
Bubbles and swirls in moldavite (natural glass)
Dendrites in agate
Dendrites in agate
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
Dumortierite in rock crystal, Brazil, polarised light
Dumortierite in rock crystal, Brazil, polarised light
Inclusions of hematite in aquamarine, Tanzania
Inclusions of hematite in aquamarine, Tanzania
Spinel crystal in dolomite marble, Burma
Spinel crystal in dolomite marble, Burma