Granite, light micrograph
Granodiorite, light micrograph
Brixen granite, light micrograph
Aplite, light micrograph
Brixen granite
Granodiorite
Val Gardena sandstone, light micrograph
Forbach granite, light micrograph
Rhyolite, light micrograph
Orthogneiss, light micrograph
Granite, polarised light micrograph
Forbach granite
Aplite, polarised light micrograph
Granite
Muscovite and feldspar
Granite rock, light micrograph
Migmatite, light micrograph
Paragneiss, light micrograph
Graphic granite rock, light micrograph
Trachyte. polarised light micrograph
Basalt, light micrograph
Quartz mineral stone, light micrograph
Val Gardena sandstone
Quartz phyllite, light micrograph
Arkose, polarised light micrograph
Quartz Diorite, LM of thin section
Gabbro rock, light micrograph
Garnet mica schist thin cut, polarised light micrograph
Granite specimen
Quartz vein in granite
Graphic granite rock
Ancient Roman columns
Mica schist folds, light micrograph
Granite, thin section, polarised LM
Migmatite
Amazonite
Rhyolite
Porphyritic texture in granite
Quartz nodule, polarised light micrograph
Rhyolitic tuff, polarised light micrograph
Andesite rock, light micrograph
Brown granite stone
Muscovite, polarised light micrograph
Granodiorite rock, light micrograph
Mica in quartz, light micrograph
Devonian slates
Molybdenite in granite groundmass
Sample of granite
Molybdenite in granite
Titanite bearing granite
Yellow Pollucite in coarse granite
Lasa marble, light micrograph
Bunter sandstone, light micrograph
Graphic tourmaline, light micrograph
Peridotite, polarised light micrograph
Amphibolite, light micrograph
Dolerite rock crystals, polarised LM
Hornblende-biotite granite
Granite Tor on Bodmin Moor
Polarised LM of a thin section of diorite
Granulite mineral, light micrograph
Plutonic rock, light micrograph
Staurolite phenocrysts, polarised light micrograph
Zircon crystals on host rock
Microcline
Jasper, polarised light micrograph
A gneiss enclave in granite.
Mica schist folds, polarised light LM
Two-mica granite
Polarised LM of thin section of gabbro
Melaphyr rock, light micrograph
Porphyritic microgranite
Ganister, polarised light micrograph
Gneiss, light micrograph
Gneiss with garnet, light micrograph
Limestone, light micrograph
Oolitic limestone, light micrograph
Crinoidal limestone, light micrograph
Hornfels, polarised light micrograph
Coastal rocks and pebbles
Graphic Granite
White Granite
Disintegrated Granite
Granite, Massachusetts, USA
Pegmatite dike in granite
A weathered granite boulder
Rock mineral crystals, polarised LM
Three types of granite rock
Contact between Granite and Bedrock
Granite boulders and sandy beach
Round granite boulders on coast
Granite rock arch in mountains in Namibia
Pink granite rock formation, Brittany, France
Granite on Capo Testa, Sardinia, Italy
Sandstone in dusty matrix, polarised light micrograph
Rough topaz
Polarised LM of thin section of igneous rock
Snowball garnet, light micrograph
Selenite mineral, light micrograph
Kimberlite rock, light micrograph
Granite pebbles in soft natural tones.
Granite pebbles with white & orange quartz veins
Staurolite crystal, light micrograph
One large and one small granite pebble on black.
Granite coast in Sardinia
Quartzite mineral, light micrograph
Geode, thin section micrograph
Emerald in host rock