Raw garnet crystal
Rare bright green Uvarovite Garnet
Almandine
Gneiss with garnet
Garnet
Gneiss with garnet, light micrograph
Deformation of garnet crystal
Cut Pyrope gemstone
Garnet gemstone
Spessartine garnet
Garnet crystals on schist
Garnet in peridotite
Grossular garnet crystals on rock surface
Garnet.
Grossular dodecahedral crystal
Tourmaline crystal, thin section
Garnet gemstones
Uvarovite garnet crystals
Demantoid
Andradite crystals
Almandine mineral sample
Garnets in micaschist, light micrograph
Pyrope sand
Clinochlore with garnets
Wollastonite with kolophonite
Grossular crystals in host rock
Almandine crystals in schist
Andradite mineral
Peridotite
Andradite, New Jersey
Precious gemstones
Diamond with garnet inclusion
Grossularite Garnet crystal
Citrine
Concentric banding in agate
Garnet gem
Yellow crystal
Princess cut garnet
Round cut garnet
Garnet-bearing rock
Snowball garnet, light micrograph
Grossularite Garnet crystals, Hessonite
Garnet, Concord, Vermont, USA
Garnet in Schist
Garnet, variety Androdite
Almandine crystals
Garnet, variety Uvarovite on diopside
Spessartite (garnet) crystals growing on albite
Grossular
Rough pinkish-red Rubellite
Garnet Crystal Gemstone
Lapis lazuli crystals I
Lapis lazuli crystals II
Cut Spessartine gemstone
Amethyst crystals
Ruby in zoisite
Smoky quartz
Twinned augite crystals
Zircon crystals on host rock
Almandine garnet in mica schist
Garnet mica schist thin cut, polarised light micrograph
Tourmaline cross section
Tourmaline on quartz
Tourmaline
Tourmaline unworked stones
Emerald cut ruby
Melanite
Hessonite
Metamorphic rock
Kimberlite rock, light micrograph
Kelephytic corona, light micrograph
Eclogite rock, light micrograph
Spessartite crystals, Monroe, Connecticut
Grossular, Mexico
Boudinage in dyke crossing serpentinite
Demantoid garnet gemstone
Prehnite and okenite
Uvarovite Garnet
Fire Opal
Black tourmaline, SEM
Lapis lazuli, SEM
Emerald
Uncut emeralds
Pallasite meteorite fragment
Colourful gemstones
Pyroxene crystal, thin section
Pink beryl crystal, SEM
Lherzolite rock, light micrograph
Amphibolite, light micrograph
Quartz coated with silica
Axinite
Malachite and chrysocolla minerals
Chrysocolla mineral
Beryl crystals
Rose Quartz
Ruby crystal and gems
Garnet in micaschist I
Raw amethyst crystal
Raw citrine crystal
Raw tourmaline crystal
Agate
Chalcedony
Sapphire crystal
Calcite crystal
Cut Watermelon Tourmaline gemstone
Yellow-green Tourmaline rough
Trillion cut tourmaline gemstone
Cut green Paraiba Tourmaline gemstone
Single amethyst crystal, close up
Stilbite crystal group
Uvarovite crystals
Apophyllite crystals
Quartz crystal, SEM
Tourmaline gemstones and crystal
Ruby
Hornblende crystals
Microcline mineral
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Rubies and sapphire
Scolecite
Aventurine
Melanite II
Melanite I
Flourite crystal, Kirlian photograph
Unpolished topaz crystals
Ironstone matrix with potch opal
Mass of pyramid-shaped amethyst crystals
Tourmaline crystal
Microdiamond crystal
Calcite
Quartz encrusted calcite crystals
Septarian nodule surface
Schorl tourmaline crystal stone
Tourmaline crystal specimen
Tourmaline crystal specimens
Emerald crystal, close up
Prismatic amethyst crystal
Garnet in micaschist II
Olivine peridot crystal, close up
Topaz crystal in albite and microcline
Quartz crystals, SEM
Heat-treated amethyst
Quartz crystal from Sentis, Switzerland.
Kyanite
Pyrargyrite crystals
Spinel crystal
Uncut diamond
Uncut diamonds
Tourmaline crystals in quartz
Diamonds