Canari asbestos plant, Corsica
Asbestos sample
Actinolite crystals
Asbestos fibres, SEM
Asbestos veins in serpentinite
Actinolite, Chester, Vermont, USA
Asbestos fibres
Actinolite crystals with talc
Nephrite crystals
Titanite crystals in actinolite
Jadeite carved dish from China
Nephrite jade specimen
Jade sword handle
Ilmenite crystal with actinolite and quartz
Actinolite mineral, light micrograph
Actinolite
Actinolite, Tyringham, Massachusetts, USA
Tremolite crystals
Asbestos fiberschrysotile type, SEM
Stilbite crystal group
actinolite
緑閃石
Tremolite, New Jersey, USA.
Anthophyllite asbestos
Scolecite
Azurite on Chrysocolla substrate
Staurolite, twinning cross
Chrysotile Asbestos
Tremolite variety Hexagonite
Diatomaceous earth quarry
Chrysotile asbestos fibers
Fibres of Amosite, brown asbestos
Amphibole Asbestos, Maryland, USA
Tremolite, Tyringham, Massachusetts, USA
Tremolite, Canaan, Connecticut, USA
Yellow crystal
Raw garnet crystal
Almandine
Cut pink topaz gemstone
Quartz coated with silica
Axinite
Prehnite and okenite
Pallasite meteorite fragment
Fire Opal
Sample of muscovite
Agate
Chalcedony
Tourmaline crystal, thin section
Black tourmaline, SEM
Malachite and chrysocolla minerals
Amethyst crystals
Chrysocolla mineral
Beryl crystals
Pink beryl crystal, SEM
Moss agate
Citrine crystal group
Concentric banding in agate
Tourmaline unworked stones
Lapis lazuli, SEM
Micrometeorite, SEM
Emerald
Fayalite
Tourmaline on quartz
Basalt, light micrograph
Gneiss with garnet, light micrograph
Gneiss with garnet
Fibrous crystals of riebeckite on rock groundmass
Apophyllite crystals
Enstatite
Sample of feldspar
Lizardite in serpentine rock
Kyanite
Serpentine groundmass with chrysotile
Chrysotile in groundmass, close-up
Chrysotile
Dendrites in agate
Neptunite
Carnelian
Aventurine
Uncut emeralds
Asbestos removal work
Azurite sample
Azurite mineral sample
Brochantite and azurite crystals
Lapis lazuli crystals I
Lapis lazuli crystals II
Azurite.
Asbestos content test in a soil sample
blue apatite
Quartz crystals, SEM
Smoky quartz
Chabazite
Biotite mineral in orthopyroxene
Twinned augite crystals
Hornblende crystals
Microcline mineral
Pyroxene crystal, thin section
Quartz crystal, SEM
Citrine
Ruby in zoisite
Zircon crystals on host rock
Zinnwaldite mineral group
Rhodonite
Coral sand sample, SEM
Smoky quartz crystals
Garnet
Colourful gemstones
Tiger eye, light micrograph
Cut green Tourmaline gemstone
Cut Indicolite gemstone
Cut Cordierite (Iolite) gemstone
Cut Kyanite gemstone
Cut Pyrope gemstone
Cut Scapolite round gemstone
Cut Scapolite gemstone
Cut Spessartine gemstone
Cut Watermelon Tourmaline gemstone
Rough pinkish-red Rubellite
Rare bright green Uvarovite Garnet
Yellow-green Tourmaline rough
Trillion cut tourmaline gemstone
Cut green Paraiba Tourmaline gemstone
Cut pink Topaz gemstone
Tiger eye, thin section micrograph
Tiger eye, polished surface
Leopard skin jasper close
Leopard skin jasper II
Leopard skin jasper I
Tourmaline cross section
Tourmaline
Barred olivine chondrule
Brecciated jasper
A specimen of the mineral azurite found in Eire
Orpiment on pyrite
Azurite in Limonite Groundmass
Spherical concretions of radiating azurite crystals