Azurite
Azurite nodule
Azurite sample
Azurite on Chrysocolla substrate
Malachite & Azurite I
Malachite & Azurite II
Azurite crystals
Open cast copper mining in Arizona
Azurite and malachite
Malachite globular precipitate
Crystal Healing Stone Azurite
Azurite crystals, SEM
Botryoidal malachite
Polished slab of Malachite
Malachite
Forms of copper ore
Azurite, an ore of Copper
Azurite in Limonite Groundmass
Azurite.
Malachite and Azurite
Azurite in host rock
Brochantite
Botryoidal Malachite on chrysocolia
Stalactitic habit of malachite
Manganite
Brochantite and azurite crystals
Malachite mosaic
Raw turquoise
Turquoise mineral
Calcium carbonate precipitation
Malachite mineral sample
Azurite and malachite deposits
Malachite, Zaire
Mineral deposition
Azurite mineral sample
Septarian nodule surface
Calcite crystal
Calcite
Quartz encrusted calcite crystals
Azurite copper ore stone
Magnetite and calcite
Malachite and chrysocolla minerals
Scolecite
Smithsonite
Chrysocolla mineral
Turquoise on native copper I
Turquoise on native copper II
Cerrusite
Barite on Cerusite I
Barite on Cerusite II
Barite on Cerusite, close
Siderite and calcite
Malachite, SEM
Malachite, Arizona, USA
Vauquelinite
Sylvanite crystals
Chalcopyrite and quartz crystals
Cuprocassiterite in quartz mica schist
Petrified Wood, New Mexico
Hyalite Opal
Concentric banding in agate
Stilbite crystal group
Almandine
Crocoite
Nephrite crystals
Titanite crystals in actinolite
Spherical concretions of radiating azurite crystals
Azurite, New Mexico, USA
Tetrahedrite
A specimen of the mineral azurite found in Eire
Aragonite
Iron oxide precipitation in agate
Cut and polished agate
Amethyst geode interior
Deformed quartz veins in slate
Staurolite, twinning cross
Chalcocite crystals
Malachite crystals, SEM
Copper sulphate with sodium carbonate
Limescale deposit in copper piping
Chalcosite
Copper objects and ores
Malachite-based mineral deposit
Synthetic abalone shell, SEM
Raw garnet crystal
Tourmaline crystal, thin section
Tourmaline
Rutile quartz
Tourmaline on quartz
Rough pinkish-red Rubellite
Rare bright green Uvarovite Garnet
Crenulation cleavage in calcite
Calcite globules
Galena
Calcite crystals
Coral calcite crystals
Silver crystals in calcite
Brazilianite crystals in calcite
Aragonite crystals
Aragonite crystals with sulphur
Flos-ferri aragonite
Pseudomorphic crystal growth
Graphite on calcite crystals
Cut and polished septarian nodule
Apophyllite on calcite
Pink calcite crystals
Double refraction in a calcite crystal
Zincite in fraklinite
Septarian nodule
Macrophotograph of crystals of calcite
Calcite crystal group
Skalenoedric calcite crystals
Scalenohedral calcite crystals
Mollusc shell, SEM
Calcium carbonate crystals, SEM
Calcite crystal rosettes
Cerussite
Red calcite, Mexico
Nailhead calcite and galena
Magnesite crystals in groundmass
Scalenohedral calcite, close-up
Prehnite and okenite
Sphalerite & chalcopyrite
Rutilated quartz
Baryte and malachite
Meyerhofferite
Biosphere 2, Arizona, USA
Bournonite on Gypsum Substrate I
Bournonite on Gypsum Substrate II
Chrysocolla with azurite
Atacamite and malachite crystals
Ruby in zoisite
Almandine crystals
Blue smithsonite in groundmass