Gneiss with garnet
Gneiss with garnet, light micrograph
Rare bright green Uvarovite Garnet
Raw garnet crystal
Almandine
Garnet
Cut Pyrope gemstone
Garnet.
Garnet crystals on schist
Garnet in peridotite
Garnet gemstones
Garnet gemstone
Spessartine garnet
Garnet-bearing rock
Grossular garnet crystals on rock surface
Almandine crystals in schist
Peridotite
Precious gemstones
Garnet mica schist thin cut, polarised light micrograph
Garnet gem
Andradite crystals
Almandine mineral sample
Pyrope sand
Grossular crystals in host rock
Metamorphic rock
Grossular dodecahedral crystal
Andradite mineral
Demantoid
Garnet in Schist
Uvarovite garnet crystals
Snowball garnet, light micrograph
Citrine
Princess cut garnet
Round cut garnet
Garnets in micaschist, light micrograph
Clinochlore with garnets
Grossularite Garnet crystals, Hessonite
Garnet, Concord, Vermont, USA
Grossularite Garnet crystal
Deformation of garnet crystal
Wollastonite with kolophonite
Orthogneiss, light micrograph
Garnet, variety Uvarovite on diopside
Spessartite (garnet) crystals growing on albite
Emerald
Amphibolite, light micrograph
Kimberlite rock, light micrograph
Lapis lazuli, SEM
Concentric banding in agate
Uncut emeralds
Cut Spessartine gemstone
Migmatite, light micrograph
Emerald cut ruby
Spessartite crystals, Monroe, Connecticut
Grossular, Mexico
Andradite, New Jersey
Melanite
Hessonite
Boudinage in dyke crossing serpentinite
Yellow-green Tourmaline rough
Fire Opal
Garnet, variety Androdite
Garnet in micaschist I
Demantoid garnet gemstone
Migmatite
Paragneiss, light micrograph
Kelephytic corona, light micrograph
Lherzolite rock, light micrograph
Eclogite rock, light micrograph
Cut Watermelon Tourmaline gemstone
Trillion cut tourmaline gemstone
Cut green Paraiba Tourmaline gemstone
Lizardite in serpentine rock
Tourmaline crystal, thin section
Black tourmaline, SEM
Cut Diopside gemstone
Rose Quartz
Zircon crystals on host rock
Colourful gemstones
Diamond with garnet inclusion
Uvarovite Garnet
Sample of muscovite
Axinite
Cut Kyanite gemstone
Yellow crystal
Aventurine
Prehnite and okenite
Sample of feldspar
Grossular
Asscher cut diamond gemstone
Pink diamonds
Cut yellow Vesuvianite gemstone
Pallasite meteorite fragment
Twinned augite crystals
Smoky quartz
Garnet in micaschist II
Almandine crystals
Almandine garnet in mica schist
Gneiss
Tourmaline
Tourmaline on quartz
Rough pinkish-red Rubellite
Tourmaline cross section
Cut green Tourmaline gemstone
Cut pink Topaz gemstone
Chrysocolla mineral
Beryl crystals
Quartz coated with silica
Carnelian
Tourmaline unworked stones
Cut pink topaz gemstone
Melanite II
Melanite I
Ruby in zoisite
Ironstone matrix with potch opal
Rutile crystals
Calcite crystal
Calcite
Quartz encrusted calcite crystals
Asbestos veins in serpentinite
Round cut red Andesine
Cut Quartz gemstone
Anatextite gneiss
Black tourmaline in mica schist
Topaz crystal in albite and microcline
Emerald crystal, close up
Olivine peridot crystal, close up
Schorl and quartz crystals in groundmass
Agate
Chalcedony
Cut Cordierite (Iolite) gemstone
Cut Scapolite gemstone
Moss agate
Quartz vein in gneiss rock
Gemstones and light dispersion
blue apatite
Ruby crystal and gems
Cut Zircon gemstone
Rough diamond
Cut Indicolite gemstone
Uvarovite crystals
Opalised fossil
Emeralds
Heat-treated amethyst
Sample of Labradorite
Opal
Peridot
Olivine mineral sample
Nephrite crystals
Moonstone gemstones
Agate in amethyst
Topaz crystals