Tourmaline gemstone
Verdite green tourmaline gemstone
Watermelon tourmaline crystalline stone
Watermelon tourmaline
Tourmaline
Tourmaline crystal specimen
Tourmaline crystal specimens
Crystals of green toumaline and pink lepidolite
Indicolite tourmaline faceted stone
Schorl tourmaline crystal stone
Opal gemstone
Bi-coloured tourmaline crystals
Tourmaline gemstones in quartz
Hawk's Eye quartz stone
Tourmaline Pegmatite
Tourmaline gem
Tourmaline crystals
Tourmaline pegmatite
Black opal gemstone
Tourmaline crystals in matrix
Elbaite crystal, variety Tourmaline
Albite with Tourmaline
Tourmaline crystals on Albite
Tourmaline crystals in quartz
Schorl variety of Tourmaline, Namibia
Fire opal birthstone
Alexandrite stone
Sapphire gemstone
Turquoise stone
Tourmaline specimen
Tourmaline gemstones
Tourmaline quartz
Raw tourmaline crystal
Tourmaline gemstones and crystal
Elbaite mineral (tourmaline)
Tourmaline gem, 365 carat
Blue tourmaline crystals
Tourmaline in quartz
Tourmaline mica in slate
Tourmaline in gneiss rock
Black tourmaline in mica schist
Tourmaline Crystals, Minas Gerais, Brazil
Green Tourmaline in Muscovite, Maine
Opal rock
Chrysoberyl yellow beryllium gemstone
Schorl and quartz crystals in groundmass
Dravite mineral
Topaz gemstone
Aquamarine gemstone
Tourmaline crystal
Quartz and green tourmaline crystals
Pink tourmaline crystals growing on mica
Tourmaline mineral, light micrograph
紅電気石
Opal mineral stone
Schorl, the black variety of Tourmaline
電気石
Elbaite mineral
Granitic pegmatite
Opal birthstone
Trillion cut tourmaline gemstone
Cut green Paraiba Tourmaline gemstone
Tourmaline crystals in quartzite
Yellow-green Tourmaline rough
Orthoclase adenoma moonstone gemstone
Rubellite I
Rubellite II
Rubellite Tourmaline in Lepidolite Mica
Opal gemstones
Single piece of blue opal
Cut Watermelon Tourmaline gemstone
Moonstone gemstones
Rubellite tourmaline pendant
Tourmaline crystal, thin section
Black tourmaline, SEM
Tourmaline embedded in feldspar rock
Polarized light experiments, 1847
Granite specimen
Topaz gemstones
Turquoise gemstones
Garnet gemstones
Cut green Tourmaline gemstone
Graphic tourmaline, light micrograph
Elbaite on albite and quartz
Opal gem necklace
Mylonite, light micrograph
オパール
Blue opal gemstones
Peridot gemstones
Amethyst gemstones
Emerald gemstones
Opal
Luxulyanite, thin section, LM
Tourmaline schorl specimen
A diamond
Amethyst quartz birthstone
Citrine quartz birthstone
Ruby in tweezers, studio shot
Emerald in tweezers, studio shot
Jewel in tweezers, studio shot
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)
Opal specimen
2つのダイヤモンド
Tourmaline on quartz
Opal specimens
Sapphire gemstones
Peridot gemstone
Demantoid garnet gemstone
Opal in its host rock
Opal on bedrock
蛋白石
Pink Diamonds
Single large diamond, close-up (still life)
Assorted jewels
Diamond gemstones
Ironstone matrix with potch opal
Potch opal with smooth and rough surface
Opal gem and rock
Precious gemstones
Gem
ダイヤモンド
Ruby gemstones
Diamond reflected on black surface
Diamond
Lazurite birthstone
Cut Diamond with Colour Refractions
Tourmaline cross section
Opalised fossil
Round polished Common Opal
Fire opal
Opal surface
A cut and polished fire opal
Slice through fossilised wood revealing opal
Large diamond in box
Tweezers holding diamond, close-up
Rough pinkish-red Rubellite
Diamonds on red velvet, elevated view
Diamond, side view, studio shot
Diamond, studio shot
Diamond, close-up
Rainbow light diamond, close-up
Diamonds on black background
Cut Fire Opal gemstone
Tweezers holding small purple diamond, close-up
Boulder opal formation