Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Bubbles and swirls in moldavite (natural glass)
Bubbles and swirls in moldavite (natural glass)
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil
Spinel crystal in dolomite marble, Burma
Spinel crystal in dolomite marble, Burma
Dendrites in agate
Dendrites in agate
Fire opal, Mexico
Fire opal, Mexico
Structure in a healing fissure in topaz from Brazil
Structure in a healing fissure in topaz from Brazil
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
«Red fox agate» from Patagonia, Argentina
«Red fox agate» from Patagonia, Argentina