オパール
Fire opal birthstone
A cut and polished fire opal
Single piece of blue opal
Slice through fossilised wood revealing opal
Opal gemstones
Opal rock
Black opal gemstone
Opal mineral stone
Opal birthstone
Blue opal gemstones
蛋白石
Three pieces of blue opal
Opal specimens
Opal
Opal gemstone
Opal specimen
Ironstone matrix with potch opal
Potch opal with smooth and rough surface
Opal in its host rock
Opal gem and rock
Opal gem necklace
Round polished Common Opal
Fire opal
Opal surface
Opal on bedrock
Boulder opal formation
Opal specimen and cut stone
Fire Opal
Opalised fossil
Verdite green tourmaline gemstone
Tourmaline gemstone
Mineral samples
Cut Fire Opal gemstone
'Black' opal cabochon specimen
紅電気石
電気石
Opal Bivalve fossil Coober Pedy Australia
Detail of brushed copper
Rubellite I
Rubellite II
Raw tourmaline crystal
Bi-coloured tourmaline crystals
Blue tourmaline crystals
Schorl and quartz crystals in groundmass
Tourmaline Pegmatite
Tourmaline gem
Tourmaline crystals in matrix
Tourmaline
Elbaite crystal, variety Tourmaline
Schorl variety of Tourmaline, Namibia
Tourmaline crystals
Albite with Tourmaline
Tourmaline crystals on Albite
Tourmaline crystals in quartz
Tourmaline pegmatite
Watermelon tourmaline
Dravite mineral
Indicolite tourmaline faceted stone
Watermelon tourmaline crystalline stone
Hawk's Eye quartz stone
Schorl tourmaline crystal stone
Limburgite
Tourmaline gemstones and crystal
Elbaite mineral (tourmaline)
Tourmaline gem, 365 carat
Tourmaline specimen
Elbaite mineral
Tourmaline gemstones in quartz
Luxulyanite, thin section, LM
Tourmaline in quartz
Tourmaline gemstones
Tourmaline quartz
Granitic pegmatite
Black tourmaline in mica schist
Tourmaline mica in slate
Tourmaline in gneiss rock
Tourmaline Crystals, Minas Gerais, Brazil
Green Tourmaline in Muscovite, Maine
ムーンストーン
Close up of cut diamond
Diamond refracting light
Diamond against black background
Garnet.
Citrine.
Tarquoise.
Diamond
Moonstone.
ベージュの布上に置かれた花をモチーフにしたブローチ
Schorl (black Toutmaline)
Polarized light experiments, 1847
Tourmaline crystal
Pink tourmaline crystals growing on mica
Quartz and green tourmaline crystals
Crystals of green toumaline and pink lepidolite
Tourmaline mineral, light micrograph
Schorl, the black variety of Tourmaline
ダイヤモンド
Yellow diamond
Diamond, side view, studio shot
Diamond, studio shot
Demantoid garnet gemstone
Kornerupine gemstone
Single large diamond, close-up (still life)
Uncut emeralds
Sapphire gemstone
Citrine quartz birthstone
A diamond
Diamond, close-up
Rainbow light diamond, close-up
Pendant with jade
Pendant with pearl
Pendant with diamond
Cut and polished crystal of imperial topaz
Topaz gemstone
Large diamond
ブリリアンカットされたダイヤの正面をズーム
Display of Rings Made with Precious Stones
Amethyst quartz birthstone
Close up of cut diamonds
Automated diamond cutting
Gem
Moonstones
Orthoclase adenoma moonstone gemstone
Diamond in jewelry box
Diamond reflected on black surface
Yellow-green Tourmaline rough
Trillion cut tourmaline gemstone
Cut green Paraiba Tourmaline gemstone
Rubellite Tourmaline in Lepidolite Mica
Granite specimen
Tourmaline crystal specimen
Tourmaline crystal specimens
黄玉
Diamond emitting light spectrum, close-up
Turquoise stone
Tweezers holding small purple diamond, close-up
オパール3点
Lazurite birthstone
Moonstone gemstones
Heart to Heart
Blue Diamond
Amethyst crystals
Star rubies and sapphires
Un-cut diamonds
Tweezers with rough cut diamonds