Theodore Maiman, American physicist
First laser
Ruby
Pyrargyrite crystals
Ruby crystal and gems
Ruby crystals, SEM
Rubies and sapphire
Synthetic ruby
Large ruby slice
Ruby in zoisite
Cut Ruby gemstone
Five polished ruby gemstones
Ruby in Fuchsite Crystal Stone
Ruby in Zoisite Crystal Gemstone
Ruby gemstones
Synthetic gemstones
Ruby in Fuchsite a Crystal Gemstone
Rubies panned from river gravels
Rubies
Blue sapphire stone
Blue Sapphire uncut stone
Orange sapphire gemstone
Sapphire crystal
Sapphire crystals in rock groundmass
Precious gemstones
Polished rubies
Ruby in tweezers, studio shot
Colourful gemstones
Microdiamond crystal
Nephrite crystals
Tremolite crystals
Tourmaline gemstone
Wollastonite with kolophonite
Opalised fossil
Grossular crystals in host rock
Rough emeralds
Tourmaline crystals in quartzite
Crushed diamond, SEM
Lapis lazuli crystals
Sample of sapphire
ルビー
Gold bar and ruby in gift box
Clinochlore
Chromite
Fluorite crystals
Kyanite mineral
Prehnite and okenite minerals
Synthetic spinel
Diamond in host rock
Star rubies and sapphires
Jewellery with gemstones and diamonds
Aragonite crystals
Sapphire, SEM
Corundum crystal
Uncut diamond
Amethyst gemstones and crystal
Meteorite NWA 6435, light micrograph
Black tourmaline in mica schist
Citrine
Tourmaline
Cut diamond
Tourmaline crystals in quartz
Andradite crystals
Amethyst
Almandine mineral sample
Olivine mineral sample
Garnets in micaschist, light micrograph
Topaz crystals
Pyrope sand
Opal gem necklace
Jade stone
Indicolite tourmaline faceted stone
Watermelon tourmaline crystalline stone
Hawk's Eye quartz stone
Schorl tourmaline crystal stone
Amethyst geode
Amethyst geodes
Garnet gemstone
Amethyst filled geode
Clinochlore with garnets
Quartz types
Garnet crystals on schist
Amethyst crystals
Rubellite tourmaline pendant
Uvarovite garnet crystals
Fire opal
'Black' opal cabochon specimen
Topaz gemstone
Topaz specimens
Almandine crystals in schist
Amethyst geode interior
Tourmaline crystal specimen
Tourmaline crystal specimens
Spessartine garnet
Watermelon tourmaline
Grossular dodecahedral crystal
Elbaite mineral
Dravite mineral
Andradite mineral
Demantoid
Emeralds
Uncut diamonds
Peridotite
Garnet in peridotite
Amethyst and chalcedony
Pallasite meteorite
Meteorite Brenham, light micrograph
Meteorite NWA 2957, light micrograph
Meteorite Fukang China, light micrograph
Almandine
Topaz crystal in albite and microcline
Emerald crystal, close up
Ironstone matrix with potch opal
Prismatic amethyst crystal
Olivine peridot crystal, close up
Heat-treated amethyst
Elbaite on albite and quartz
Mineral samples
Rare bright green Uvarovite Garnet
Grossular garnet crystals on rock surface
Schorl and quartz crystals in groundmass
Green hemimorphite in groundmass
Tourmaline embedded in feldspar rock
Elbaite mineral (tourmaline)
Opal
Graphic tourmaline, light micrograph
グレープフルーツ
Diamond rings in a pile
宝石イメージ
グレープフルーツジュース/ルビー
2つの赤いハート
宝石