Picromerite mineral
Mimetite mineral
Plumbogummite mineral
Astrophyllite mineral
Adamite mineral
Gypsum crystals
Pyromorphite
Cuprite twinned crystals
Cuprite octahedral crystal
Evaporation deposit from salt water
Microcline mineral
Wulfenite mineral
Galenite crystals
Monazite mineral
Enargite mineral
Quartz
Baryte
Evaporation experiment
Salt crystals formed by evaporation
Azurite crystals
Citrine
Tourmaline
Brookite
Galena
Borax crystals, SEM
Boron salt crystals, SEM
Copper sulphate crystallizing
Stibnite crystals
Copper II sulphate
Meyerhofferite mineral
Axinite
Arsenic
Beryl
Evaporating water using a sand tray
Residue from evaporated water
Potassium dichromate crystallization, macrophotograph
Potassium chromate crystallization
Blue lace agate
Amethyst
Antimony
Sodium chloride crystallization
Sodium sulphate crystallization
Nosean on sanidine
Thulite mineral
Berzeliite mineral
Scolecite mineral
Evaporation deposit from fresh water
Leucitite mineral, light micrograph
Sample of granite
Sample of sandstone
Sample of basalt
Sample of clay
Sample of shale
Rock mineral crystals, polarised LM
Meteorite
The Stannern achondrite
The Nakhla meteorite
Macrophotograph of high purity cobalt
Wulfenite crystals
Comet core
Structure of comet
Proustite
Almandine crystals
Strontianite mineral
Coastal eroded coral with salt pools
Salt evaporation ponds
Jamesonite
Demantoid
Libethenite mineral
Tiger eye
Witherite mineral in crystal form
Carnelian agate
Cut and polished jasper
Malachite mineral sample
Cobalt calcite mineral sample
Selenite mineral sample
Germanium, macrophotograph
Aluminium
Red crystalline mineral
Native copper
Native gold
Native silver
Sample of limestone
Sequential dehydration
Ruby
Twinned staurolite crystals
Clinochlore
Fluorite crystals
Selenite crystals
Autunite crystals, close-up
Childrenite crystal in quartz
Heulandite crystal
Analcime or analcite crystal
Baryte crystals
Prismatic parallel crystals of allanite
Prismatic Piemontite crystals
Prismatic beryl crystal
Lizardite crystal
Monazite crystal
Purple-blue geode
Brookite with adamantine lustre
Stephanite crystals, close-up
Garnierite crystals on rock surface
Rough Diaspore
Cyanotrichite crystals on rock surface
Ilvaite crystal
Dolomite in Quartz Groundmass
A piece of Thenardite
Clinochlore crystals in rock groundmass
Rock Crystal
Aegirine crystal in rock groundmass
Datolite crystals, close-up
Mercury
Riebeckite crystals in groundmass
Astrophyllite
Pyrargyrite crystals, close-up
Microcline in rock groundmass
Albite crystals, close-up
Calcium carbonate precipitation
Epidote crystals
Kyanite mineral
Quartz with inclusions
Prehnite epimorph after laumontite
Olivenite specimen
Fluorite
Breccia Sanguigna marble
Breccia Coallina Rosa marble
Siderite mineral
Dravite mineral
Andradite mineral
Rhodochrosite mineral
Prehnite mineral
Dolomite mineral
Manganite crystals
Ammonium chloride sublimation
Nitratine mineral (sodium nitrate)
Selenite mineral, light micrograph
Agate mineral rock cross section
Sample of chalk
Cassiterite crystals
Willemite crystal
Fibrous sillimanite
Prismatic crocoite crystals
Bladed radial form of desert rose gypsum
Milky Quartz
Polybasite crystals, close-up
Wavellite
Chondrodite in rock groundmass
Humite in rock groundmass
Smoky Quartz in Milky Quartz Groundmass
Pectolite crystals
Evaporation residues
Spessartine
Equipment for distillation of volatile liquid fractions
Apatite crystal
Twinned fluorite crystals
Chromite
Apatite crystals
Fluorspar crystals
Porphyritic texture in an igneous rock
Prehnite and okenite minerals
Synthetic spinel
Iron pyrite
Labradorite
Baryte and malachite
Calcite spherulites
Quartz crystals
Evaporating water from a brine solution