Quartz filled concretion
Turritella agate
Quartz
Quartz polished stone
Tiger Eye quartz gemstone
Hawk's Eye quartz stone
Fuchsite mineral stone
Rutilated quartz
Amethyst
Egyptian jasper stone
Botswana agate stones
Round agate geode
Round agate thunderegg
Two agate thundereggs
Agate slice
Blue lace agate
Botswana agate stone
Amethyst geode
Amethyst geodes
Carnelian gemstone
Garnet crystal and rock
Yellow Jasper
Leopardskin jasper stone
Citrine
Avanturine smooth gemstone
Schorl tourmaline crystal stone
Deformed quartz veins in slate
Spotted Jasper stone
Quartz crystals
Quartz crystal
Blue sapphire stone
Blue Sapphire uncut stone
Opal gem necklace
Jade stone
Quartz vein in granite
Garnet crystals on schist
Smoky quartz crystals
Rose quartz mineral, artwork
Tourmaline crystals in quartz
Chalcopyrite and quartz crystals
Magnetite in quartz
Quartz in sphalerite
Molybdenite in quartz monzonite
Galenite and quartz crystals
Zeolite in quartz
Pyrolusite in quartz
Tellurium in quartz
Hessite in quartz
Emerald crystal in quartz
Chabazite crystals in quartz
Native gold on quartz
Emerald in quartz
Quartz encrusted calcite crystals
Orthoclase and quartz crystals
Quartz mineral stone, light micrograph
Mica in quartz, light micrograph
Crystals of haematite in quartz
Cuprocassiterite in quartz mica schist
Amethyst filled geode
Ruby
Indicolite tourmaline faceted stone
Watermelon tourmaline crystalline stone
Pyrargyrite crystals
Native gold
Graphic granite rock
Granite
Quartz vein
Quartz mineral stone
Smokey Quartz gemstone
Basaltic dyke rock
Quartz types
Hyacinth quartz
Agate with round centre
Quartz crystal from Sentis, Switzerland.
Cut and polished jasper
Jasper
Aventurine gemstone
Iron oxide precipitation in agate
Agate mineral rock cross section
Jasp agate stone
Jasp agate polished surface
Cabuchon gemstones of jasper
Dyed agate slice
Moss Agate stone
Amethyst stone
Banded Amethyst stone
Aragonite crystals
Beryl stone
Calcite crystal
Calcite
Chalcopyrite
Chiastolite stone
Garnet gemstone
Jasper polished stone
Brecciated Jasper stone
Kyanite crystal
Labradorite rock crystals
Amethyst crystals
Cut and polished agate
Agate geode
Amethyst geode interior
Amethyst and chalcedony
Fire agate
Twinned staurolite crystals
Siderite mineral
Pseudomorphic crystal growth
Colourful crystals
Prasiolite mineral
Beryl gem, cut stone
Silica rock crystal samples
Glacial sand deposit
Elbaite on albite and quartz
Schorl and quartz crystals in groundmass
Unakite mineral stone
Zeolite crystal
Hope Chrysoberyl gemstone
Crystalline limestone rock
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 polished stone pattern
Mocha agate with veined pattern
Brecciated Agate stone
Agate cross section and layers
Agate stone cross section
Agate stone cross section and patterns
Flame agate stone pattern
Agate stone patterns
Desert rose mineral clusters
Dolomite mineral
Gypsum stone
Haematite mineral rock
Quartz and schist outcrops
Quartz and cassiterite crystals
Quartz monzonite
Quartz boulder
Brecciated quartz
Sample of shale