Gypsum crystals
Desert rose of gypsum crystals
Desert rose barite
Desert rose mineral clusters
Hemimorphite crystals
Sulphur crystals
Strontianite crystals
Amethyst crystals
Fluorite crystals
Uvarovite garnet crystals
Acicular form of gypsum
Amethyst
Carved malachite column
'Black' opal cabochon specimen
Orange sapphire gemstone
Topaz gemstone
Rosette-shaped gypsum known as a desert rose
Rubellite tourmaline pendant
Picromerite mineral
Quartz types
Selenite crystals
Baryte crystals
Kunzite crystal and cut stone
Twinned staurolite crystals
Amethyst geode interior
Tourmaline crystal specimens
Haematite mineral specimen
Dendritic copper specimen
Azurite crystals
Hematite crystals
Calcite crystal specimen
Diamond with garnet inclusion
Apatite crystals
Fluorspar crystals
Twinned fluorite crystals
Gypsum stone
Tourmaline crystal specimen
Thulite mineral
Berzeliite mineral
Clinochlore
Scolecite mineral
Prismatic beryl crystal
Axinite
Desert Rose (Selenite) Crystal Gemstone
Tenorite mineral crystals
Riebeckite crystals in groundmass
デザートローズ
Quartz crystals
Prismatic parallel crystals of allanite
Clinochlore crystals in rock groundmass
Boleite crystals in gypsum groundmass
Boulder opal formation
Polished and cut turquoise
Molybdenite specimen
Haematite specimen
Allende meteorite specimen
Banded iron specimen
Obsidian specimen
Opal specimen and cut stone
Nephrite jade specimen
Belt-hook carved in lapis lazuli
Calcite crystals
Aragonite crystals
Apophyllite crystals
Stilbite crystals
Scolecite crystals
Nephrite crystals
Tremolite crystals
Colourful crystals
Pyrite crystals
Pyrargyrite crystals
Chalcocite crystals
Arsenopyrite crystals
Apatite crystal
Malachite mineral sample
Cobalt calcite mineral sample
Selenite mineral sample
Chromite
Kyanite mineral
Porphyritic texture in an igneous rock
Prehnite and okenite minerals
Calcite spherulites
Epidote crystals
Iron pyrite crystals
Tourmaline crystals in quartz
Coral calcite crystals
Chalcopyrite and quartz crystals
Brazilianite crystals in calcite
Aragonite crystals with sulphur
Titanite crystals in actinolite
Pink calcite crystals
Garnet crystals on schist
Quartz encrusted calcite crystals
Arsenopyrite crystals, close-up
Green spherical prehnite crystals
Pyrrhotite crystals, close-up
Magnesite crystals in groundmass
Dioptase crystals in groundmass
Cobaltite and chalcopyrite crystals
Glaucodot crystals in groundmass
Atacamite and malachite crystals
Apophyllite crystals, close-up
Agate silica crystals in stone
Tabular muscovite crystals and apatite
Vanadinite crystals in rock groundmass
Scapolite crystals in rock groundmass
Rhodonite crystals in rock groundmass
Sapphire crystals in rock groundmass
, showing formation of blue crystals
Bismuthinite crystals in rock groundmass
Sylvanite crystals in calcite groundmass
Muscovite crystals in rock groundmass
Grossular garnet crystals on rock surface
Schorl and quartz crystals in groundmass
Sphene crystals in groundmass, close-up
Bladed radial form of desert rose gypsum
Tourmaline schorl specimen
Selenite mineral, light micrograph
Opal
Dioptase mineral sample
Pectolite crystals
Autunite crystals, close-up
Prismatic Piemontite crystals
Prismatic crocoite crystals
Stephanite crystals, close-up
Polybasite crystals, close-up
Datolite crystals, close-up
Pyrargyrite crystals, close-up
Albite crystals, close-up
Garnierite crystals on rock surface
Cyanotrichite crystals on rock surface
Andradite crystals
Petzite crystals
Topaz crystals
Celestine crystals
Beryl crystals
Childrenite crystal in quartz
Willemite crystal
Dolomite in Quartz Groundmass
Witherite mineral in crystal form
Aegirine crystal in rock groundmass
Microcline in rock groundmass
Selenite gypsum
Smoky quartz crystals
Silver crystals in calcite
Actinolite crystals with talc
Galenite and quartz crystals
Labradorite rock crystals
Graphite on calcite crystals
Andelusite crystals in slate
Chabazite crystals in quartz
Sphalerite and ankerite crystals
Almandine crystals in schist