Vauquelinite
Crocoite
Potassium chromate crystallization
Manganite
Scolecite
Azurite on Chrysocolla substrate
Wavellite
Azurite nodule
Azurite
Brochantite
Azurite crystals
Datolite
Flourite crystals
A piece of Thenardite
Vivianite I
Vivianite II
Stilbite crystal group
Electron microscopy solution crystals, SEM
Chromic acid molecule
Actinolite crystals with talc
Almandine
Almandine close
Sodium thiosulphate crystals
Sodium bicarbonate crystals, light micrograph
Kernite crystal
Fluorapatite crystal, SEM
Fractured fluorapatite crystal, SEM
Fluorapatite crystal surface, SEM
Fluorapatite crystals, SEM
化学物質の結晶
Barite on Cerusite II
Barite on Cerusite, close
Potassium chromate solutions
Zinnwaldite mineral group
Lepidolite
Arsenopyrite
Datolite crystals
Sphalerite crystals
Azurite sample
Nephrite crystals
Galena
Kyanite
Copper sulphate and alum crystals
Aragonite crystals with sulphur
Apophyllite on calcite
Celestine crystals in sulphur groundmass
Cerrusite
Barite on Cerusite I
Meyerhofferite mineral
Calcite crystals
Coral calcite crystals
Brazilianite crystals in calcite
Flos-ferri aragonite
Pink calcite crystals
Calcite
Aragonite crystals
Calcium carbonate precipitation
Howlite crystals
Ankerite crystals in groundmass, close-up
Nailhead calcite and galena
Chalcanthite crystals in rock groundmass
Blue smithsonite in groundmass
Nitratine mineral (sodium nitrate)
Linarite in rock groundmass, close-up
Gypsum stone
Asbestos sample
Chrysocolla mineral
Hydrated copper sulphate crystals
Copper sulphate crystal
Chromite in serpentinite groundmass
Meyerhofferite
Alum crystals
Potassium nitrate crystals
Magnesium sulphate crystals
Cobalt II nitrate 6 water on watch glass
Fluorite mineral
Gibbsite
Titanite crystals in actinolite
Azurite in Limonite Groundmass
Tartaric acid crystals
Fluorite in dolomite
Malachite & Azurite I
Malachite & Azurite II
Nagyagite
Stibnite
Graphite on calcite crystals
Microcline mineral
Feldspar and quartz
Tourmaline on quartz
Axinite
Cut and polished septarian nodule
Barytocalcite crystals in rock groundmass
Daisy Gypsum
Magnesite crystals in groundmass
Scalenohedral calcite, close-up
Artinite crystals in rock groundmass
Anatase mineral (titanium oxide)
Glauberite, close-up
Azurite crystals, SEM
Crystal Healing Stone Azurite
Rutile quartz
Malachite and chrysocolla minerals
Information storage in DNA and silica
Steatite (soapstone)
Magnetite and calcite
Pseudomorphic crystal growth
Zincite in fraklinite
Septarian nodule
Macrophotograph of crystals of calcite
Calcite crystal group
Aragonite
Skalenoedric calcite crystals
Beryl crystals
Smoky quartz
Brookite
Chalcocite crystals
Triphylite
Rough Diaspore
Xenotime
Sodium phosphate crystals, SEM
Siderite and calcite
Calcium carbonate crystal, SEM
Quartz crystals, SEM
Double refraction in a calcite crystal
Selenite gypsum
Cuprite crystals
Red calcite, Mexico
Desert rose barite
Brushite crystals, SEM
Octacalciumphosphate crytals, SEM