Gneiss with garnet, light micrograph
Gneiss with garnet
Almandine
Garnet mica schist thin cut, polarised light micrograph
Rare bright green Uvarovite Garnet
Garnet
Orthogneiss, light micrograph
Snowball garnet, light micrograph
Amphibolite, light micrograph
Raw garnet crystal
Kimberlite rock, light micrograph
Garnets in micaschist, light micrograph
Cut Pyrope gemstone
Migmatite, light micrograph
Paragneiss, light micrograph
Kelephytic corona, light micrograph
Lherzolite rock, light micrograph
Eclogite rock, light micrograph
Tourmaline crystal, thin section
Lapis lazuli, SEM
Black tourmaline, SEM
Garnet crystals on schist
Garnet in peridotite
Garnet.
Garnet gemstones
Garnet gemstone
Spessartine garnet
Garnet-bearing rock
Uvarovite garnet crystals
Cut Spessartine gemstone
Migmatite
Precious gemstones
Grossular garnet crystals on rock surface
Wollastonite with kolophonite
Almandine crystals in schist
Peridotite
Emerald
Garnet gem
Basalt, light micrograph
Colourful gemstones
Garnet in Schist
Gneiss, light micrograph
Andradite crystals
Almandine mineral sample
Pyrope sand
Clinochlore with garnets
Grossular crystals in host rock
Metamorphic rock
Grossular dodecahedral crystal
Andradite mineral
Demantoid
Citrine
Cut Watermelon Tourmaline gemstone
Yellow-green Tourmaline rough
Trillion cut tourmaline gemstone
Cut green Paraiba Tourmaline gemstone
Garnet in micaschist I
Tourmaline unworked stones
Mylonite, light micrograph
Demantoid garnet gemstone
Princess cut garnet
Round cut garnet
Grossularite Garnet crystals, Hessonite
Garnet, Concord, Vermont, USA
Garnet, variety Androdite
Grossularite Garnet crystal
Deformation of garnet crystal
Concentric banding in agate
Prehnite and okenite
Garnet, variety Uvarovite on diopside
Grossular
Spessartite (garnet) crystals growing on albite
Zircon crystals on host rock
Biotite mineral in orthopyroxene
Almandine crystals
Almandine garnet in mica schist
Tourmaline cross section
Cut green Tourmaline gemstone
Cut pink Topaz gemstone
Yellow crystal
Fire Opal
Uvarovite Garnet
Uncut emeralds
Lizardite in serpentine rock
Cut pink topaz gemstone
Peridotite, polarised light micrograph
Amethyst, SEM
Microdiamond crystal
Gneiss, thin section, polarised LM
Tourmaline on quartz
Pallasite meteorite fragment
Ruby in zoisite
Diamond with garnet inclusion
Sample of muscovite
Axinite
Tourmaline
Cut Cordierite (Iolite) gemstone
Cut Kyanite gemstone
Cut Scapolite gemstone
Rough pinkish-red Rubellite
Emerald cut ruby
Spessartite crystals, Monroe, Connecticut
Grossular, Mexico
Andradite, New Jersey
Melanite
Hessonite
Boudinage in dyke crossing serpentinite
Oolitic limestone, light micrograph
Pyroxenite rock, light micrograph
Dunite rock, light micrograph
Olivine flakes, light micrograph
Tourmaline mineral, light micrograph
Peridotite rock, light micrograph
Mica in quartz, light micrograph
Jasper, polarised light micrograph
Garnet in micaschist II
Gemstones and light dispersion
Sample of feldspar
Uvarovite crystals
Agate
Chalcedony
Pink beryl crystal, SEM
Ruby crystals, SEM
Quartz crystals, SEM
Quartz crystal, SEM
Moss agate
Stilbite crystal group
Chrysocolla mineral
Beryl crystals
Quartz coated with silica
Polarised LM of thin section of gabbro
Melanite II
Melanite I
Watch Movement, SEM
Agate. polarised light micrograph
Lapis lazuli crystals I
Lapis lazuli crystals II
Cut Scapolite round gemstone
Twinned augite crystals