Microdiamond crystal
Microdiamond crystal, SEM
Crushed diamond, SEM
Diamond in host rock
Ruby crystals, SEM
Garnets in micaschist, light micrograph
Diamonds
Diamond
Tourmaline crystal, thin section
Uncut diamond
Cut diamond
Uncut diamonds
Amethyst, SEM
Mica in quartz, light micrograph
Diamond gemstones
Cut and polished diamonds
Sapphire crystal
Azurite crystals, SEM
Emerald, SEM
Quartz crystals, SEM
Agate. polarised light micrograph
Fluorapatite crystal, SEM
Polarised LM of thin section of gabbro
Nephrite crystals
Tremolite crystals
Wollastonite with kolophonite
Pyrargyrite crystals
Opalised fossil
Grossular crystals in host rock
Rough emeralds
Tourmaline crystals in quartzite
Lapis lazuli crystals
Sand, SEM
Ironstone matrix with potch opal
Nickel dendrites, SEM
Asscher cut diamond gemstone
Pink diamonds
Schorl tourmaline crystal stone
Ruby crystal and gems
Tourmaline crystal specimen
Tourmaline crystal specimens
Grossular dodecahedral crystal
Emerald crystal, close up
Prismatic amethyst crystal
Herkimer diamonds of quartz mineral
Diamond with garnet inclusion
Olivine peridot crystal, close up
Topaz crystal in albite and microcline
Black tourmaline, SEM
Crystalline manganese, SEM
Peridotite rock, light micrograph
Lapis lazuli, SEM
Polishing cloth cross-section, SEM
Pink beryl crystal, SEM
Copper oxide crystals, SEM
Kimberlite rock, light micrograph
Garnet mica schist thin cut, polarised light micrograph
Snowball garnet, light micrograph
Amphibolite, light micrograph
Gneiss with garnet, light micrograph
Mylonite, light micrograph
Chemical crystals, polarised LM
Pseudomorphic crystal growth
Emerald crystal in quartz
Silica rock crystal samples
Quartz crystal, SEM
Cullinan diamond replica
Synthetic diamond film production
Synthetic diamond film
Diamond in kimberlite
Pre-cut diamond forms
Diamond cleaning
Zeolite catalyst crystals, SEM
Ruby
Iron pyrite crystal, SEM
Diamond cutting
Chalcopyrite, SEM
Rose quartz crystals, SEM
Carbon
Natural copper crystal, SEM
Selenite mineral, light micrograph
Mica schist folds, light micrograph
Staurolite phenocrysts, polarised light micrograph
Quartz nodule, polarised light micrograph
Malachite, SEM
Microdiamond, SEM
Black tourmaline in mica schist
Amethyst
Citrine
Tourmaline
Tourmaline crystals in quartz
Andradite crystals
Almandine mineral sample
Olivine mineral sample
Topaz crystals
Pyrope sand
Blue sapphire stone
Blue Sapphire uncut stone
Opal gem necklace
Jade stone
Indicolite tourmaline faceted stone
Watermelon tourmaline crystalline stone
Hawk's Eye quartz stone