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  • Petrography (13 entries)
Outcrop of Calcite/Gypsum Full-growth Crystals
Outcrop of Calcite/Gypsum Full-growth Crystals by Metwally Hamza
Example of meta-gabbro/amphibolite enclaves in a granite vein (possible pegmatite texture).
Example of meta-gabbro/amphibolite enclaves in a granite vein (possible pegmatite texture). by Sophie Graul
The Embrace (of Ocean Jasper)
The Embrace (of Ocean Jasper) by Bernardo Cesare
Karlsbader Sprudelstein
Karlsbader Sprudelstein by Bernardo Cesare
G2-granite hand sample taken from its incubating mountain
G2-granite hand sample taken from its incubating mountain by Metwally Hamza
A specimen shows manganese dendrites
A specimen shows manganese dendrites 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
The Grid: A serpentine pseudomorph after carbonate
The Grid: A serpentine pseudomorph after carbonate by Kristina G Dunkel
Devitrification of Obsidian
Devitrification of Obsidian by Joel Gill
micROCKScopica - Ocean Jasper
micROCKScopica - Ocean Jasper by Bernardo Cesare
micROCKScopica - Graphite-bearing Granulite
micROCKScopica - Graphite-bearing Granulite by Bernardo Cesare
micROCKScopica - Symplectite in Granulite
micROCKScopica - Symplectite in Granulite by Bernardo Cesare
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