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
Agate from Reichweiler, Germany
Agate from Reichweiler, Germany
Colour zoning in ruby from Mong-Shu, Burma
Colour zoning in ruby from Mong-Shu, Burma
Fire opal, Mexico
Fire opal, Mexico
Dendrites in agate
Dendrites in agate
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil
Two-phase inclusions in tourmaline from Namibia
Two-phase inclusions in tourmaline from Namibia
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil