Blue lace agate
Carnelian agate
Agate slice
Agate geode
Jasp agate stone
Jasp agate polished surface
Botswana agate stones
Round agate geode
Round agate thunderegg
Two agate thundereggs
Botswana agate stone
Dyed agate slice
Moss Agate stone
Cut and polished agate
Iron oxide precipitation in agate
Agate mineral rock cross section
Agate surface
Agate thunderegg
Concentric banding in agate
Flame agate stone pattern
Agate stone patterns
Agate stone cross section and patterns
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
Turritella agate
Fire agate
Slice of agate
Lace agate stone
Calcite crystal
Calcite
Fuchsite mineral stone
Kyanite crystal
Labradorite rock crystals
Agate Bridge at Petrified Forest, Arizona
Three calcite crystals
Mounted India dendritic agate
Agate
Agate lava geode
Banded texture in agate
Agate, artificially coloured
Polished Esterel rhyolite agate
Bubble lace agate
Agate. polarised light micrograph
Brecciated agate
Sard Onyx layered Agate
Brecciated Agate stone
Cut agates
Geode interior
Rhyolitic geode
Geode interior section
Brecciated agate rock
Agate cross section
Jasp agate cabuchon
Moss agate marble pattern
Cross section of agate
Agate polished cross section
Agate cabuchon stone
Triangular agate stone
Agate polished stone pattern
Hollow agate with crystal
Agate with round centre
Agate stone cross section
Amethyst geodes
Aragonite crystals
Carnelian gemstone
Garnet crystal and rock
Brecciated Jasper stone
Yellow Jasper
Leopardskin jasper stone
Iron dendrites in agate
Agate stone with round whorls
Agate silica crystals in stone
Cross section of agate stone
Cross section of hollow agate
Cross section of jasp agate
Agate stone with white layers
Mocha agate with veined pattern
Agate cross section and layers
Agate stone with layers of colour
Laguna agate
Moctezuma agate
Cryptocrystalline agate
Fortification agate
Cross-section slice of Brazilian agate
Agate in amethyst
Agua Nueva agate
Thunder egg agate
Quartz filled geode
Iris agate
Fairburn agate
Lysite agate
Moss agate
Plume agate
Pompon agate
Antelope agate
Coyamito agate
Condor agate
Sagenitic agate
Omineca agate
Crater agate
Queensland agate
Geode, thin section micrograph
Agate specimen
Union road agate
Lake Superior agate