Almandine
Almandine crystals in schist
Almandine crystals
Rare bright green Uvarovite Garnet
Almandine mineral sample
Raw garnet crystal
Gneiss with garnet, light micrograph
Gneiss with garnet
Garnet mica schist thin cut, polarised light micrograph
Garnet crystals on schist
Almandine garnet in mica schist
Garnet
Cut Pyrope gemstone
Garnet in micaschist I
Grossular
Wollastonite with kolophonite
Peridotite
Garnet in peridotite
Prehnite and okenite
Axinite
Ruby in zoisite
Garnet in micaschist II
Andradite crystals
Garnets in micaschist, light micrograph
Pyrope sand
Garnet gemstone
Clinochlore with garnets
Uvarovite garnet crystals
Grossular crystals in host rock
Spessartine garnet
Grossular dodecahedral crystal
Andradite mineral
Demantoid
Grossular garnet crystals on rock surface
Tourmaline cross section
Citrine
Colourful gemstones
Concentric banding in agate
Tourmaline
Tourmaline on quartz
Rough pinkish-red Rubellite
Cut Spessartine gemstone
Precious gemstones
Zircon crystals on host rock
Tourmaline crystal, thin section
Stilbite crystal group
Tourmaline unworked stones
Feldspar and quartz
Uvarovite crystals
Pallasite meteorite fragment
Almandine close
Black tourmaline in mica schist
Tourmaline crystals in quartzite
Rose Quartz
Andradite, New Jersey
Deformation of garnet crystal
Chrysocolla mineral
Zinnwaldite mineral group
Garnet in Schist
Kyanite
Amphibolite, light micrograph
Lapis lazuli, SEM
Emerald
Cut Watermelon Tourmaline gemstone
Yellow-green Tourmaline rough
Trillion cut tourmaline gemstone
Cut green Paraiba Tourmaline gemstone
Scolecite
Cut Scapolite round gemstone
Ruby quartz
Beryl crystals
Quartz coated with silica
Sample of muscovite
Lapis lazuli crystals I
Lapis lazuli crystals II
Garnet.
Garnet gemstones
Synthetic gemstones
Ruby
Ruby crystal and gems
Sapphire crystal
Garnet Crystal Gemstone
Diamond with garnet inclusion
Kimberlite rock, light micrograph
Garnet-bearing rock
Metamorphic rock
Snowball garnet, light micrograph
Native gold
Deformed quartz veins in slate
Cut green Tourmaline gemstone
Cut pink Topaz gemstone
Hessonite
Agate
Chalcedony
Pink beryl crystal, SEM
Rough topaz
Amethyst crystals
Orthogneiss, light micrograph
Blue labradorite
Twinned augite crystals
Smoky quartz
Cut Cordierite (Iolite) gemstone
Cut Kyanite gemstone
Cut Scapolite gemstone
Melanite II
Melanite I
Demantoid garnet gemstone
Ruby crystals, SEM
Apophyllite crystals
Microcline mineral
Garnet gem
Kelephytic corona, light micrograph
Lherzolite rock, light micrograph
Eclogite rock, light micrograph
Ironstone matrix with potch opal
Calcite crystal
Calcite
Quartz encrusted calcite crystals
Rhodonite
Uncut emeralds
Opalised fossil
Emeralds
Topaz crystal in albite and microcline
Emerald crystal, close up
Olivine peridot crystal, close up
Heat-treated amethyst
Elbaite on albite and quartz
Schorl and quartz crystals in groundmass
Green hemimorphite in groundmass
Yellow crystal
Black tourmaline, SEM
Fire Opal
Quartz crystals, SEM
Quartz crystal, SEM
Sapphire crystals in rock groundmass
Cut pink topaz gemstone
Lizardite in serpentine rock
Migmatite, light micrograph
Migmatite
Paragneiss, light micrograph
Malachite and chrysocolla minerals
Rubies and sapphire
Cut Diopside gemstone
Cut yellow Vesuvianite gemstone
Round cut red Andesine
Cut Quartz gemstone
Cut Zircon gemstone
Chabazite
Apophyllite on calcite