Basalt, light micrograph
LM of a thin section of gabbro rock
Gabbro microcrystals, light micrograph
Rhyolite, light micrograph
Basaltic dyke, polarised light micrograph
Gabbro rock, light micrograph
Pallasite meteorite fragment
Migmatite, light micrograph
Orthogneiss, light micrograph
Paragneiss, light micrograph
Aplite, light micrograph
Brixen granite, light micrograph
Granite, light micrograph
Granodiorite, light micrograph
Gneiss with garnet, light micrograph
Kimberlite rock, light micrograph
Hawaiite, thin cut, polarised light micrograph
Peridotite, polarised light micrograph
Kentallenite - Ballaculish, Scotland, LM
Fayalite
Granite, polarised light micrograph
Aplite, polarised light micrograph
Polarised LM of thin section of gabbro
Lherzolite rock, light micrograph
Pyroxenite rock, light micrograph
Dunite rock, light micrograph
Olivine flakes, light micrograph
Komatitite rock, light micrograph
Peridotite rock, light micrograph
Limburgite
Rhyolite
Olivine-rich lava
Migmatite
Martian soil sample, X-ray diffraction analysis
Melaphyr rock, light micrograph
Rhyolitic tuff, polarised light micrograph
Val Gardena sandstone, light micrograph
Trachyte. polarised light micrograph
Forbach granite, light micrograph
Dolerite rock crystals, polarised LM
Granodiorite rock, light micrograph
Sample of feldspar
Sample of muscovite
Meteorite DHO 020-H4_5 Dhofar Oman, LM
Gale Crater, Mars, satellite image
Lapis lazuli, SEM
Amphibolite, light micrograph
Gneiss, thin section, polarised LM
Olivine mineral sample
Concentric banding in agate
Agate
Chalcedony
Olivine peridot crystal, close up
Garnet
Andesite rock, light micrograph
Brixen granite
Granodiorite
Quartz phyllite, light micrograph
Barred olivine chondrule
Jasper, polarised light micrograph
Tourmaline crystal, thin section
Quartz nodule, polarised light micrograph
Gneiss with garnet
Almandine
Tourmaline on quartz
Mica schist folds, light micrograph
Feldspar and quartz
Stilbite crystal group
Diatomaceous earth quarry
Mica schist folds, polarised light LM
Basaltic dyke rock
Seymchan pallasite
Peridot
Forbach granite
Quartz crystals, SEM
Quartz crystal, SEM
Moss agate
Quartz coated with silica
Citrine
Basalt columns
Garnet mica schist thin cut, polarised light micrograph
Peridot pebble and mixed-cut peridot
Arkose, polarised light micrograph
Lizardite in serpentine rock
Lasa marble, light micrograph
Blue labradorite
Sample of basalt
Melaphyr rock I
Melaphyr rock II
Emerald
Cut pink topaz gemstone
Prehnite and okenite
Tourmaline unworked stones
Olivine inclusion in basalt
Analcime crystal group
Geode, thin section micrograph
Axinite
Peridotite, thin section micrograph
Black tourmaline, SEM
Zircon crystals on host rock
Tiger eye, thin section micrograph
Sample of andesite
Andesite
Oolitic limestone, light micrograph
Citrine crystal group
Rock mineral crystals, polarised LM
Rare bright green Uvarovite Garnet
Polished sphere of ocean jasper
Fuchsite mineral stone
Peridot, Pakistan, 129 Carat
Moss agate, polarised light micrograph
Snowball garnet, light micrograph
Yellow crystal
Fire Opal
Amethyst crystals
Twinned augite crystals
Agate. polarised light micrograph
Quartzite mineral, light micrograph
Rock strain fringes, light micrograph