Gemstones and light dispersion
Precious gemstones
Sapphire crystal
Sapphire gemstone
Sapphire gemstones
Synthetic gemstones
Ruby
Blue sapphire stone
Blue Sapphire uncut stone
Orange sapphire gemstone
Yellow sapphire
Blue rectangular gemstone
Rubies and sapphire
Garnet gemstones
Ruby and sapphire specimens
Oval cut purple sapphire gemstone
Sapphire crystals in rock groundmass
Sapphire ring
Sapphires
Ruby quartz
Cut Sapphire gemstone
Cut yellow sapphire gemstone
Gneiss with garnet
Humphry Davy (1778-1829), English chemist
Sapphire, Sri Lanka, 288 carat
Sample of sapphire
Colourful gemstones
Cullinan diamond replica
Sylvanite crystals
Synthetic diamond film production
Synthetic diamond film
Crushed diamond, SEM
Diamond in kimberlite
Pre-cut diamond forms
Diamond cleaning
Garnet.
Kimberlite rock, light micrograph
Almandine crystals
Garnet mica schist thin cut, polarised light micrograph
Andradite crystals
Almandine mineral sample
Garnets in micaschist, light micrograph
Pyrope sand
Garnet-bearing rock
Garnet gemstone
Clinochlore with garnets
Garnet crystals on schist
Uvarovite garnet crystals
Wollastonite with kolophonite
Grossular crystals in host rock
Almandine crystals in schist
Spessartine garnet
Garnet
Metamorphic rock
Grossular dodecahedral crystal
Andradite mineral
Demantoid
Peridotite
Garnet in peridotite
Almandine
Grossular
Grossular garnet crystals on rock surface
Snowball garnet, light micrograph
Amphibolite, light micrograph
Gneiss with garnet, light micrograph
Orthogneiss, light micrograph
Uvarovite crystals
Sapphire mining, Madagascar
Emerald cut ruby gemstone
Jewellery with gemstones and diamonds
Star rubies and sapphires
Sapphire, SEM
Carbon
Sapphires panned from river gravels
Hessonite
Almandine garnet in mica schist
Migmatite, light micrograph
Cut and polished diamonds
Diamond
Diamonds
Cut diamond
Cut Pyrope gemstone
Rare bright green Uvarovite Garnet
Various colored diamonds and gemstones
Cut Spessartine gemstone
Diamond gemstones
Fortification agate
Agate
Large citrine gemstone
サファイア
Cubic zirconia
Round cut diamond solitaire stone
Princess cut garnet
Emerald cut ruby
Round cut garnet
Raw garnet crystal
Garnet gem
Spessartite crystals, Monroe, Connecticut
Grossular, Mexico
Grossularite Garnet crystals, Hessonite
Garnet, Concord, Vermont, USA
Garnet in Schist
Garnet, variety Androdite
Garnet, variety Uvarovite on diopside
Andradite, New Jersey
Uvarovite Garnet
Grossularite Garnet crystal
Kelephytic corona, light micrograph
Lherzolite rock, light micrograph
Eclogite rock, light micrograph
Melanite
Deformation of garnet crystal
Spessartite (garnet) crystals growing on albite
Boudinage in dyke crossing serpentinite
Molybdenum disuphide research
Sapphire gravel recovered from a stream
Graphite on calcite crystals
Five polished ruby gemstones
Migmatite
Paragneiss, light micrograph
Moss agate, polarised light micrograph
Ruby in zoisite
Microdiamond crystal