Almandine
Grossular
Almandine crystals in schist
Rare bright green Uvarovite Garnet
Almandine crystals
Garnet crystals on schist
Raw garnet crystal
Gneiss with garnet, light micrograph
Gneiss with garnet
Almandine mineral sample
Wollastonite with kolophonite
Peridotite
Garnet in peridotite
Prehnite and okenite
Garnet
Cut Pyrope gemstone
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
Garnet mica schist thin cut, polarised light micrograph
Ruby in zoisite
Almandine garnet in mica schist
Precious gemstones
Citrine
Feldspar and quartz
Quartz coated with silica
Uvarovite crystals
Stilbite crystal group
Tourmaline unworked stones
Concentric banding in agate
Hessonite
Andradite, New Jersey
Deformation of garnet crystal
Zircon crystals on host rock
Garnet in Schist
Amphibolite, light micrograph
Tourmaline cross section
Tourmaline crystal, thin section
Zinnwaldite mineral group
Kyanite
Rutilated quartz
Tourmaline on quartz
Pallasite meteorite fragment
Tourmaline crystals in quartz
Garnet in micaschist I
Colourful gemstones
Chrysocolla mineral
Ruby
Ruby crystal and gems
Sapphire crystal
Axinite
Tourmaline
Rough pinkish-red Rubellite
Diamond with garnet inclusion
Garnet.
Garnet gemstones
Dodecahedral crystal of spessartine
Cut Spessartine gemstone
Kimberlite rock, light micrograph
Garnet-bearing rock
Metamorphic rock
Snowball garnet, light micrograph
Almandine close
Lapis lazuli, SEM
Emerald
Microdiamond crystal
Rough topaz
Orthogneiss, light micrograph
Chabazite
Blue labradorite
Beryl crystals
Pink beryl crystal, SEM
Sample of muscovite
Calcite crystals
Lapis lazuli crystals I
Lapis lazuli crystals II
Cut Scapolite round gemstone
Ruby crystals, SEM
Rose Quartz
Garnet Crystal Gemstone
Rhombohedral siderite crystals
Ironstone matrix with potch opal
Synthetic gemstones
Calcite crystal
Calcite
Quartz encrusted calcite crystals
Quartz crystals
Smoky quartz crystals
Garnet gem
Kelephytic corona, light micrograph
Lherzolite rock, light micrograph
Eclogite rock, light micrograph
Black tourmaline in mica schist
Opalised fossil
Tourmaline crystals in quartzite
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
Sapphire crystals in rock groundmass
Agate
Chalcedony
Garnet in micaschist II
Cut Watermelon Tourmaline gemstone
Yellow-green Tourmaline rough
Trillion cut tourmaline gemstone
Cut green Paraiba Tourmaline gemstone
Amethyst crystals
Scolecite
Migmatite, light micrograph
Migmatite
Paragneiss, light micrograph
Twinned augite crystals
Smoky quartz
Red calcite crystals
Quartz crystals, SEM
Quartz crystal, SEM
Andradite
Rubies and sapphire
Melanite II
Melanite I
Wavellite
Diamond in host rock
Graphic tourmaline, light micrograph
Princess cut garnet
Emerald cut ruby
Round cut garnet
Spessartite crystals, Monroe, Connecticut