Agate Bridge at Petrified Forest, Arizona
Slice of agate
Agate slice
Agate geode
Jasp agate stone
Jasp agate polished surface
Botswana agate stones
Round agate geode
Round agate thunderegg
Two agate thundereggs
Blue lace agate
Botswana agate stone
Dyed agate slice
Moss Agate stone
Cut and polished agate
Iron oxide precipitation in agate
Agate mineral rock cross section
Agate
Cut agates
Geode interior
Rhyolitic geode
Geode interior section
Iron dendrites in agate
Banded texture in agate
Turritella agate
Cabuchon gemstones of jasper
Egyptian jasper stone
Amethyst geode
Amethyst stone
Banded Amethyst stone
Amethyst
Beryl stone
Chalcopyrite
Chiastolite stone
Garnet gemstone
Jasper polished stone
Amethyst filled geode
Fire agate
Calcite crystal
Calcite
Fuchsite mineral stone
Kyanite crystal
Labradorite rock crystals
Green calcite crystal
Celestite crystals
Agate surface
Agate thunderegg
Agate. polarised light micrograph
Flame agate stone pattern
Agate stone patterns
Agate stone cross section and patterns
Geode in thin section
Concentric banding in agate
Amethyst geodes
Aragonite crystals
Carnelian gemstone
Garnet crystal and rock
Brecciated Jasper stone
Yellow Jasper
Leopardskin jasper stone
Dendritic crystals in chalcedony
Amethyst and chalcedony
Cross-section slice of Brazilian agate
Cut agate
Laguna agate
Moctezuma agate
Cryptocrystalline agate
Fortification agate
Petrified Forest National Park, Arizona
Slice of dyed agate
Agua Nueva agate
Thunder egg agate
Mineral precipitate in agate
Quartz crystals
Sard Onyx layered Agate
Spotted Jasper stone
Three calcite crystals
Agate lava geode
Agate, artificially coloured
Polished Esterel rhyolite agate
Mounted India dendritic agate
Brecciated Agate stone
Quartz filled geode
Quartz vein
Quartz crystal from Sentis, Switzerland.
Dendritic precipitation in an agate
Azurite copper ore stone
Chrysocolla specimen
Amber citrine quartz stone
Agate with round centre
Smoky quartz
Citrine crystals
Quartz crystal
Quartz mineral
Tourmaline crystals in quartz
Geode, thin section micrograph
Brecciated agate
Raw citrine crystal
Quartzite metamorphic rock
Pyromorphite specimen
Siderite specimen
Smoky quartz crystals
Rose quartz mineral, artwork
Amethyst geode interior
Amethyst crystals, light micrograph
Amethyst crystals
Blue sapphire stone
Blue Sapphire uncut stone
Opal gem necklace
Jade stone
Vein agate
Carnelian agate
Brecciated agate rock
Lace agate stone
Agate cross section
Jasp agate cabuchon
Moss agate marble pattern