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Petrography

Petrography

13 items

Rocks with coin for scale, showing layered formations and textures. — Outcrop of Calcite/Gypsum Full-growth Crystals Metwally Hamza

Rock with red hammer highlighting texture and scale. — Example of meta-gabbro/amphibolite enclaves in a granite vein (possible pegmatite texture). Sophie Graul

Colorful geometric shapes form a vibrant abstract mosaic against a patterned background. — The Embrace (of Ocean Jasper) Bernardo Cesare

Abstract, swirling colors create a vibrant, psychedelic effect. — Karlsbader Sprudelstein Bernardo Cesare

Speckled rock resting on dry, sandy soil. — G2-granite hand sample taken from its incubating mountain Metwally Hamza

Fossilized fern impressions preserved in a rock fragment, with a coin for scale. — A specimen shows manganese dendrites Metwally Hamza

Microscopic view shows varied circular patterns, with dark and light specks scattered across a textured surface. — A thin section in pumice extrusive/volcanic igneous rock Metwally Hamza

Colorful abstract shapes contrast with metallic gray structures in a vibrant composition. — A thin section contains a wide variety of mineral grains Metwally Hamza

A blue rectangular structure with a grid pattern lies on a rugged, brown surface. — The Grid: A serpentine pseudomorph after carbonate Kristina G Dunkel

Rocky surface with a hexagonal white structure and a yellow object, surrounded by dark terrain. — Devitrification of Obsidian Joel Gill

Vibrant, swirling patterns in a kaleidoscope of colors create a psychedelic visual effect. — micROCKScopica - Ocean Jasper Bernardo Cesare

Abstract geometric shapes in vibrant red, blue, and yellow create dynamic visual contrast. — micROCKScopica - Graphite-bearing Granulite Bernardo Cesare

Abstract artwork featuring vibrant pink and purple hues with fragmented, overlapping shapes. — micROCKScopica - Symplectite in Granulite Bernardo Cesare

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