Theodore Maiman, American physicist
First laser
Ruby
Pyrargyrite crystals
Ruby crystal and gems
Ruby crystals, SEM
Rubies and sapphire
Synthetic ruby
Large ruby slice
Ruby in zoisite
Cut Ruby gemstone
Five polished ruby gemstones
Rubies
Ruby in Fuchsite Crystal Stone
Ruby in Zoisite Crystal Gemstone
Synthetic gemstones
Ruby gemstones
Ruby in Fuchsite a Crystal Gemstone
Rubies panned from river gravels
Colourful gemstones
Jewellery with gemstones and diamonds
Sapphire, SEM
Chien-Shiung Wu, Chinese-US physicist
Blue sapphire stone
Blue Sapphire uncut stone
Orange sapphire gemstone
Sapphire crystal
Sapphire crystals in rock groundmass
Aragonite crystals
Clinochlore
Chromite
Fluorite crystals
Kyanite mineral
Prehnite and okenite minerals
Synthetic spinel
Precious gemstones
Corundum crystal
Polished rubies
Ruby in tweezers, studio shot
ルビー
Apatite crystal
Twinned staurolite crystals
Malachite mineral sample
Cobalt calcite mineral sample
Selenite mineral sample
Thulite mineral
Berzeliite mineral
Twinned fluorite crystals
Apatite crystals
Fluorspar crystals
Scolecite mineral
Selenite crystals
Porphyritic texture in an igneous rock
Iron pyrite
Labradorite
Baryte and malachite
Calcite spherulites
Baryte crystals
Prismatic beryl crystal
Axinite
Diamond in host rock
Microdiamond crystal
Native gold
Crystals of haematite in quartz
Desert rose of gypsum crystals
Stilbite crystals
Actinolite crystals with talc
Apophyllite crystals
Scolecite crystals
Nephrite crystals
Tremolite crystals
Pseudomorphic crystal growth
Titanite crystals in actinolite
Galenite and quartz crystals
Colourful crystals
Tourmaline gemstone
Agate mineral rock cross section
Jasp agate stone
Jasp agate polished surface
Brecciated agate rock
Agate stone with round whorls
Agate silica crystals in stone
Cross section of agate stone
Agate stone patterns
Lace agate stone
Agate cross section
Cabuchon gemstones of jasper
Jasp agate cabuchon
Moss agate marble pattern
Cross section of hollow agate
Cross section of jasp agate
Cross section of agate
Agate polished cross section
Agate cabuchon stone
Triangular agate stone
Agate polished stone pattern
Hollow agate with crystal
Agate stone with white layers
Agate stone with layers of colour
Fire or MexicAgate
Mocha agate with veined pattern
Agate with round centre
Egyptian jasper stone
Agate thunderegg
Brecciated Agate stone
Agate objects
Agate cross section and layers
Agate stone cross section
Agate stone cross section and patterns
Flame agate stone pattern
Apophyllite on calcite
Cavansite on mordenite
Sulphur crystals
Native copper
Tellurium in quartz
Hessite in quartz
Emerald crystal in quartz
Pyrite crystals in their host rock
Pyrite crystals
Chabazite crystals in quartz
Wollastonite with kolophonite
Sphalerite and ankerite crystals
Haematite
Native gold on quartz
Emerald in quartz
Rutilated quartz
Quartz encrusted calcite crystals
Septarian nodule
Opalised fossil
Grossular crystals in host rock
Silica rock crystal samples
Hyacinth quartz
Rough emeralds
Tourmaline crystals in quartzite
Orthoclase and quartz crystals