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Geochemistry, Mineralogy, Petrology & Volcanology
(990 entries)
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Close-up of hornblendes crystals in stretched amphibolite enclave
by Sophie Graul
Example of meta-gabbro/amphibolite enclaves in a granite vein (possible pegmatite texture).
by Sophie Graul
Detail of K-feldspars pegmatite-like vein on the Kopparnäs coastline, Finland.
by Sophie Graul
Sulphide-bearing gneiss and quartzite from the Estonian Precambrian basement, Alutaguse zone.
by Sophie Graul
Microphotograph of a calcite geode found in a glendonite structure
by Sophie Graul
Hydrothermal fluorite from La Barre, France
by Sophie Graul
Octahedral crystal of fluorite in silica matrix.
by Sophie Graul
Hydrothermal fluorite from la Barre former mine, France
by Sophie Graul
Fluorite octahedron from La Barre mine
by Sophie Graul
Close-up of cubic fluorite crystals
by Sophie Graul
Hornblende schist from Est Tyrol, Austria
by Sophie Graul
Pyritised shell in Estonian phosphorites
by Sophie Graul
Close-up of Hydrothermal fluorite from la Barre former mine, France
by Sophie Graul
Hydrothermal fluorite from la Barre former mine, France
by Sophie Graul
Zoned fluorite octahedrons from la Barre, Puy-de-Dôme, France.
by Sophie Graul
Zoned fluorite from La Barre former mine, France
by Sophie Graul
The outcrop of G3-granite
by Metwally Hamza
Crstalsoulofskulldolom
by Dursun Acar
Sartorius Craters - Etna Volcano
by Valeria Belloni
Volcano-Tectonic Interaction
by Nicolas Oestreicher
Basaltic flow - Alcantara Gorges
by Valeria Belloni
The Magic of Saksun, Føroyar
by Harald Crepaz
Faroe Islands from a Puffin's perspective
by Harald Crepaz
Mirror to another world
by Alea Joachim
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