Glass
Quartz crystals, SEM
Quartz crystal, SEM
Gneiss with garnet, light micrograph
Biotite mineral in orthopyroxene
Tourmaline crystal, thin section
Black tourmaline, SEM
Fractured fluorapatite crystal, SEM
Fluorapatite crystal, SEM
Fluorapatite crystals, SEM
Cut Quartz gemstone
Fractured glass edge and surface, SEM
Smoky quartz
Cenolite filler, SEM
Citrine
Feldspar and quartz
Quartz coated with silica
Fire Opal
Yellow crystal
Carnelian
Radiolaria, light micrograph
Smoky quartz crystals
Tiger eye, thin section micrograph
Tiger eye, light micrograph
Pink beryl crystal, SEM
Silicoflagellate, light micrograph
Three species of diatoms, light micrograph
Aulacoseira granulata diatom, light micrograph
Green alga and diatoms, light micrograph
Radiolaria skeleton, light micrograph
Dendrites in agate
Basalt, light micrograph
Yellow-green Tourmaline rough
Concentric banding in agate
Moss agate
Twinned augite crystals
Hornblende crystals
Brecciated jasper
Golden algae, light micrograph
Used water softening pellets
Cobalt chloride crystals
Neptunite
Zinnwaldite mineral group
Lapis lazuli, SEM
Agate
Chalcedony
Titanium dioxide, SEM
Lizardite in serpentine rock
Enstatite
Sample of feldspar
Tiger eye, polished surface
Beryl crystals
Amethyst crystals
Rough pinkish-red Rubellite
Tourmaline
Tourmaline on quartz
Radiolarian, light micrograph
Citrine crystal group
Trachyte. polarised light micrograph
Copper sulphate crystals light micrograph
Deformed calcite crystal
Crenulation cleavage in calcite
Aventurine
Polysilazane, SEM
Raw garnet crystal
Cut Diopside gemstone
Cut Indicolite gemstone
Cut Kyanite gemstone
Cut Pyrope gemstone
Rare bright green Uvarovite Garnet
Cut yellow Vesuvianite gemstone
Round cut red Andesine
Emerald
Scolecite
Microcline mineral
Malachite and chrysocolla minerals
Kyanite
Native gold on quartz
Steatite (soapstone)
Discovery of Glass
Creatine crystals, light micrograph
Bubbles in sucrose and zinc sulphate, light micrograph
Silica microspheres, SEM
Diatoms, light micrograph
Container of the food additive E550
Container of the food additive E552
Container of the food additive E553a
Container of the food additive E554
Container of the food additive E555
Container of the food additive E556
Container of the food additive E557
Container of the food additive E559
Container of the food additive E560
Prof. William Odling, British chemist
Diatom, SEM
Diatoms, SEM
Fluorapatite crystal surface, SEM
Leopard skin jasper close
Leopard skin jasper II
Leopard skin jasper I
Quartz nodule, polarised light micrograph
Coral sand sample, SEM
Ammonium nitrate crystals, polarised light micrograph
Epsom salt crystals, light micrograph
Silver nitrate, polarised light micrograph
Zinc sulphate crystals
Chrysocolla mineral
Rose Quartz
Asbestos veins in serpentinite
Almandine
Axinite
Gneiss with garnet
Pyroxene crystal, thin section
Sample of muscovite
Cut Watermelon Tourmaline gemstone
Trillion cut tourmaline gemstone
Cut green Paraiba Tourmaline gemstone
Cut Zircon gemstone
Fossil debris in chalk, SEM
Vitamin C crystals, light micrograph
Dolerite rock crystals, polarised LM
Mica schist folds, polarised light LM
Green algae, light micrograph
Pallasite meteorite fragment
Paprika pulp cells, LM
Ganister, polarised light micrograph
Sand grains, light micrograph
Diatom, light micrograph
Grains of sand, light micrograph