Azurite.
Azurite crystals
Azurite in Limonite Groundmass
Malachite and Azurite
A specimen of the mineral azurite found in Eire
Azurite
Azurite, New Mexico, USA
Brochantite and azurite crystals
Azurite, an ore of Copper
Spherical concretions of radiating azurite crystals
Chrysocolla with azurite
Mineral deposition
Azurite copper ore stone
藍銅鉱
Azurite in host rock
Azurite and malachite
Petrified Wood, New Mexico
Hyalite Opal
Azurite and malachite deposits
Forms of copper ore
Azurite crystals, SEM
Azurite sample
Malachite & Azurite I
Malachite & Azurite II
Crystal Healing Stone Azurite
Azurite nodule
Open cast copper mining in Arizona
Azurite mineral sample
Azurite on Chrysocolla substrate
Actinolite, Chester, Vermont, USA
Realgar
Actinolite crystals
Actinolite
Biosphere 2, Arizona, USA
Orpiment on pyrite
Realgar with grey quartz
Actinolite, Tyringham, Massachusetts, USA
Nephrite crystals
緑閃石
Realgar (Arsenic Sulfide)
Sulphur crystals
Realgar, Nevada, USA
Orpiment (Yellow) and Realgar (Red)
Titanite crystals in actinolite
Actinolite mineral, light micrograph
Ilmenite crystal with actinolite and quartz
Jadeite carved dish from China
Scolecite
Realgar and Orpiment
Nagyagite
Jade sword handle
Nephrite jade specimen
雌石 石黄
鶏冠石
Actinolite crystals with talc
Arsenopyrite
Sodalite.
Gibbsite
Lazulite
sodalite gemstone
Orpiment, Romania
Stilbite crystal group
Pyroxenite mineral, light micrograph
rhodonite gemstone
unakite gemstone
realgar
Datolite crystals
Datolite
Rhodonite.
Carnelian.
Jasper.
Heliotrope, or bloodstone
Hawk's Eye
Carnelia
Tiger's Eye
leopard skin
Red Jasper
rose quartz
Crocoite
Green apophyllite
Malachite mineral
Assortment of Gemstones
Blue lace agate
Garnet.
Tarquoise.
Tiger Eye.
Moonstone.
Brochantite
Centipede in amber
Polished variscite stone
Asbestos sample
Kyanite
Sodalite, Ontario
Larimar Pectolite
Blue Cavansite rosette in rock groundmass
Calcite crystals on mordenite
Haematite
Aventurine gemstone
Celestite crystals
Aragonite crystals
Variscite specimen
Ankerite with calcite
Hemimorphite
Septarian nodule
Pyrite
Octahedral crystals of Pyrite
A specimen of fluorite
A sample of malachite
Iridescent slab of labradorite
Moss agate
Banded jasper
Rhodochrosite
Dioptase mineral sample
Cordierite
Dioptase crystals
Rose quartz gemstones
Manganite
Citrine.
Amethyst crystals
Fluorite
Rose Quartz
Beryl
Axinite crystals
Smoky Quartz crystal
Tiger's-eye variety of Chalcedony, Africa
Rose Quartz specimen
Barite
Calcite crystals
Fluorite specimen
Fluorapatite crystals
Malachite
Beryl crystal
Yellow cancrinite in syenite
Zincite specimen
Zincite
Aquamarine gems
Cerussite
A specimen of the mineral malachite
Crystals of smoky quartz
Rose apatite, dolomite & pyrrhotite crystals
Crystal of pink apatite growing on albite
Turquoise stones
Raw aquamarine crystal
Yellow diamond
Agate stone cross section and patterns
Flame agate stone pattern
Agate stone patterns
Carnelian
Aventurine
Snowflake obsidian
Barite, Springfield, Vermont, USA
Desert rose of gypsum crystals
Uncut emeralds
Double refraction of light in calcite
Diamonds
Rhodonite specimen
Iolite gemstone
Topaz gemstones
Raw tourmaline crystal