Garnet gemstone
Amethyst geode
Amethyst filled geode
Spessartine garnet
Amethyst geodes
Garnet crystals on schist
Uvarovite garnet crystals
Garnet in peridotite
Garnet crystal and rock
Carnelian gemstone
Grossular garnet crystals on rock surface
Iron oxide precipitation in agate
Agate mineral rock cross section
Jasp agate stone
Jasp agate polished surface
Cabuchon gemstones of jasper
Egyptian jasper stone
Botswana agate stones
Round agate geode
Round agate thunderegg
Two agate thundereggs
Agate slice
Blue lace agate
Botswana agate stone
Dyed agate slice
Moss Agate stone
Amethyst stone
Banded Amethyst stone
Amethyst
Beryl stone
Chalcopyrite
Chiastolite stone
Jasper polished stone
Cut and polished agate
Agate geode
Amethyst and chalcedony
Andradite crystals
Almandine mineral sample
Garnets in micaschist, light micrograph
Pyrope sand
Clinochlore with garnets
Wollastonite with kolophonite
Grossular crystals in host rock
Almandine crystals in schist
Grossular dodecahedral crystal
Andradite mineral
Demantoid
Peridotite
Turritella agate
Aragonite crystals
Calcite crystal
Calcite
Fuchsite mineral stone
Brecciated Jasper stone
Yellow Jasper
Kyanite crystal
Labradorite rock crystals
Leopardskin jasper stone
Fire agate
Rare bright green Uvarovite Garnet
Raw garnet crystal
Deformation of garnet crystal
Spotted Jasper stone
Agate. polarised light micrograph
Cut agates
Geode interior
Rhyolitic geode
Geode interior section
Slice of agate
Garnet.
Amethyst geode interior
Agate Bridge at Petrified Forest, Arizona
Almandine
Blue sapphire stone
Blue Sapphire uncut stone
Opal gem necklace
Jade stone
Garnet
Garnet gemstones
Concentric banding in agate
Garnet-bearing rock
Snowball garnet, light micrograph
Gneiss with garnet
Gneiss with garnet, light micrograph
Andradite, New Jersey
Diamond with garnet inclusion
Garnet mica schist thin cut, polarised light micrograph
Amethyst crystals
Iron dendrites in agate
Grossular
Laguna agate
Moctezuma agate
Agua Nueva agate
Cryptocrystalline agate
Thunder egg agate
Fortification agate
Agate
Green calcite crystal
Celestite crystals
Banded texture in agate
Citrine
Tourmaline crystals in quartz
Hawk's Eye quartz stone
Schorl tourmaline crystal stone
Geode, thin section micrograph
Agate in amethyst
Smoky quartz crystals
Rose quartz mineral, artwork
Quartz crystals
Tiger Eye quartz gemstone
Avanturine smooth gemstone
Geode in thin section
Amber citrine quartz stone
Quartz types
Precious gemstones
Brecciated agate
Brecciated agate rock
Agate stone with round whorls
Agate silica crystals in stone
Cross section of agate stone
Agate stone patterns
Lace agate stone
Agate cross section
Jasp agate cabuchon
Moss agate marble pattern
Cross section of hollow agate
Cross section of jasp agate
Cross section of agate
Agate polished cross section
Agate cabuchon stone
Triangular agate stone
Agate polished stone pattern
Hollow agate with crystal
Agate stone with white layers
Agate stone with layers of colour
Fire or MexicAgate