Turquoise stones
Turquoise gemstones
Polished turquoise stone
Turquoise
Turquoise gemstone
Tarquoise.
Turquoise stone
Turquoise mineral
Turquoise on rock surface, close-up
Turquoise specimen and polished stone
Turquoise stone set in gold ring
Polished and cut turquoise
Green hemimorphite in groundmass
Amazonite mineral
割れたトラバーチンにディスプレーされたアクセサリー
Turquoise embedded in iron oxide
blue apatite
Lazurite crystals in a matrix of calcite
Polished lapis lazuli stone
Lazurite
Lapis lazuli
Lapis lazuli, a rare, deep blue gemstone
Lapis lazuli specimen
Lapis lazuli crystals
Uncut diamond from Africa
Aquamarine crystal
Topaz gemstones
Asscher cut diamond gemstone
Pink diamonds
Citrine crystals
Necklace of lapis lazuli
Moonstone gemstones
Amethyst crystals
Bi-coloured tourmaline crystals
Turquoise Crystal Gemstone
Belt-hook carved in lapis lazuli
Opal gemstones
Garnet.
Citrine.
Garnet gemstones
Single piece of blue opal
Verdite green tourmaline gemstone
Orthoclase adenoma moonstone gemstone
Uncut emeralds
Moonstone.
Rough emerald
Lapis lazuli, SEM
Aquamarine gems
Opal gemstone
Opal rock
Black opal gemstone
Sapphire gemstone
Amethyst gem
Amethyst
Sapphire, Sri Lanka, 288 carat
Garnet gem
Topaz gem
Tourmaline gem
Citrine jewel
Peridot, Pakistan, 129 Carat
Garnet in Schist
Black tourmaline in mica schist
Almandine crystals in schist
Tourmaline mica in slate
Peridotite
Garnet in peridotite
Tourmaline pegmatite
Topaz crystal in albite and microcline
Emerald crystal, close up
Mass of prismatic aquamarine crystals
Schorl and quartz crystals in groundmass
Diamond in rock groundmass, close-up
Tourmaline Pegmatite
Gneiss with garnet
Garnet crystals on schist
Diamond
Blue opal gemstones
Topaz gemstone
Uncut diamonds
Quartzite rocks
Quartzite rocks covered in lichens
Emerald gemstones
Peridot gemstones
Amethyst gemstones
トルコ石
Zircon crystal
Five pearls
Lazurite birthstone
Opal mineral stone
Malachite mineral stone
Aquamarine gemstone
Tourmaline gem, 365 carat
Garnet
Pink tourmaline crystals growing on mica
Crystals of green toumaline and pink lepidolite
Aquamarine crystals
Olivine peridot crystal, close up
Yellow diamond
Rough diamond
Green Tourmaline in Muscovite, Maine
Tourmaline mineral, light micrograph
Opalised fossil
Mass of pyramid-shaped amethyst crystals
Single amethyst crystal, close up
Tourmaline crystals in quartz
Tourmaline in quartz
Topaz
Topaz, Minas Gerais, Brazil
Spessartite crystals, Monroe, Connecticut
Grossular, Mexico
Tourmaline crystals in matrix
Bloodstone
Bloodstone specimen
Tourmaline
Elbaite crystal, variety Tourmaline
Schorl variety of Tourmaline, Namibia
Tourmaline crystals
Grossularite Garnet crystals, Hessonite
Topaz or Beryl crystals
Garnet, Concord, Vermont, USA
Garnet, variety Uvarovite on diopside
Almandine
Andradite, New Jersey
Albite with Tourmaline
Grossularite Garnet crystal
Tourmaline crystals on Albite
Herkimer Diamond
Agate, polarised light micrograph
Gneiss, thin section, polarised LM
Sample of Labradorite
Andradite crystals
Almandine mineral sample
Olivine mineral sample
Nephrite crystals
Agate in amethyst
Topaz crystals
Pyrope sand
Garnet-bearing rock
Opal in its host rock
Amethyst filled geode
Zaratite
Melanite
Opal gem and rock
Fire opal
Mineral exploration drilling, Kenya
Diamond drill bit
Mining core samples, Kenya
Topaz specimens
Grossular crystals in host rock
Rough emeralds