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  • Petrology (50 entries)
Sillimanite needles in a quartzite
Sillimanite needles in a quartzite by Sophie Graul
Rapakivi granite with typical round orthoclase crystals with oligoclase rims, Finland
Rapakivi granite with typical round orthoclase crystals with oligoclase rims, Finland by Sophie Graul
Migmatite 'sigmoid' in garnet-paragneiss
Migmatite 'sigmoid' in garnet-paragneiss by Sophie Graul
Metamorphic complex with amphibolite enclaves crossed by two generations of granitic veins
Metamorphic complex with amphibolite enclaves crossed by two generations of granitic veins by Sophie Graul
Amphibolite enclaves crossed by two generations of granitic veins
Amphibolite enclaves crossed by two generations of granitic veins by Sophie Graul
Close-up of hornblendes crystals in stretched amphibolite enclave
Close-up of hornblendes crystals in stretched amphibolite enclave by Sophie Graul
Detail of K-feldspars pegmatite-like vein on the Kopparnäs coastline, Finland.
Detail of K-feldspars pegmatite-like vein on the Kopparnäs coastline, Finland. by Sophie Graul
The outcrop of G3-granite
The outcrop of G3-granite by Metwally Hamza
Baby Dino Bubbles in Quartz
Baby Dino Bubbles in Quartz by Cennet Ulukavak
God's eye in desert.
God's eye in desert. by Mohammad Goudarzi
A geologist poisonous snake
A geologist poisonous snake by Mohammad Goudarzi
G2-granite hand sample taken from its incubating mountain
G2-granite hand sample taken from its incubating mountain by Metwally Hamza
A hand sample of ferruginous sandstone
A hand sample of ferruginous sandstone by Metwally Hamza
A thin section in pumice extrusive/volcanic igneous rock
A thin section in pumice extrusive/volcanic igneous rock by Metwally Hamza
A thin section contains a wide variety of mineral grains
A thin section contains a wide variety of mineral grains by Metwally Hamza
Geometrical shadows cluster
Geometrical shadows cluster by Alice Staro
World under the microscope
World under the microscope by Alice Staro
Contact between Ortho-gneiss and Para-gneiss
Contact between Ortho-gneiss and Para-gneiss by Metwally Hamza
Outcrop of Quartz Migmatite
Outcrop of Quartz Migmatite by Metwally Hamza
Outcrop of Gabbro Xenoliths in G3-Granite
Outcrop of Gabbro Xenoliths in G3-Granite by Metwally Hamza
Block of Tonalite, Amphibolite, Migmatite, and Granodiorite
Block of Tonalite, Amphibolite, Migmatite, and Granodiorite by Metwally Hamza
Weathering of Rock - Soil Formation
Weathering of Rock - Soil Formation by Alwyn Biju
Skaergaard trough layers
Skaergaard trough layers by Gautier Nicoli
Wondering in Watkins Fjord, East Greenland
Wondering in Watkins Fjord, East Greenland by Gautier Nicoli
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