Quartz types
Amethyst crystals
Citrine
Amethyst
Amethyst geode
Amethyst geodes
Amethyst filled geode
Amethyst geode interior
Amethyst and chalcedony
Raw citrine crystal
Citrine crystals
Citrine gemstones and crystal
Amethyst crystals, light micrograph
Citrine.
Prismatic amethyst crystal
Heat-treated amethyst
Quartz variety Citrine
Amber citrine quartz stone
Tourmaline crystals in quartz
Amethyst gemstones and crystal
Cursed amethyst
Raw amethyst crystal
Calcite on amethyst
Mass of pyramid-shaped amethyst crystals
Single amethyst crystal, close up
Citrine gemstone
Hawk's Eye quartz stone
Large citrine gemstone
Pear cut citrine
Princess cut citrine
Oval cut Citrine
Round cut citrine
Oval cut citrine
Square emerald cut citrine
Asscher cut citrine
Citrine jewel
Citrine crystals, Rio Grande, Brazil
Garnet gemstone
Citrine gemstones
Topaz gemstone
Quartz
Schorl tourmaline crystal stone
Amethyst gemstones
Smoky quartz crystals
Rose quartz mineral, artwork
Quartz vein
Quartz crystals
Rutilated quartz
Amethyst, SEM
Agate in amethyst
Herkimer diamonds of quartz mineral
Quartz crystal from Sentis, Switzerland.
Chalcopyrite and quartz crystals
Magnetite in quartz
Quartz in sphalerite
Molybdenite in quartz monzonite
Galenite and quartz crystals
Zeolite in quartz
Pyrolusite in quartz
Quartz polished stone
Tiger Eye quartz gemstone
Quartz filled concretion
Tellurium in quartz
Hessite in quartz
Emerald crystal in quartz
Quartz vein in granite
Chabazite crystals in quartz
Native gold on quartz
Emerald in quartz
Quartz encrusted calcite crystals
Orthoclase and quartz crystals
Mica in quartz, light micrograph
Crystals of haematite in quartz
Cuprocassiterite in quartz mica schist
Quartz mineral stone, light micrograph
Deformed quartz veins in slate
Topaz specimens
Elbaite on albite and quartz
Citrine quartz birthstone
Schorl and quartz crystals in groundmass
Amethyst, a quartz crystal
Hyacinth quartz
Blue sapphire stone
Blue Sapphire uncut stone
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
Turritella agate
Agate slice
Blue lace agate
Botswana agate stone
Dyed agate slice
Moss Agate stone
Amethyst stone
Banded Amethyst stone
Aragonite crystals
Beryl stone
Calcite crystal
Calcite
Chalcopyrite
Chiastolite stone
Carnelian gemstone
Fuchsite mineral stone
Garnet crystal and rock
Jasper polished stone
Brecciated Jasper stone
Spotted Jasper stone
Yellow Jasper
Kyanite crystal
Labradorite rock crystals
Leopardskin jasper stone
Cut and polished agate
Agate geode
Agate. polarised light micrograph