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Geochemistry

Geochemistry

14 items

Hand holding a translucent yellow crystal against a dark background. — Gypsum Crystal from the Qattamiya Area, Cairo – An Evaporitic Mineral Growth Ahmed-M- Mohy

A girl with muddy hands smiles outdoors, showing colorful bracelets and a "MOVE ON" shirt. — A mini-experiment by a mini-scientist Antonio Jordán

Fragments of light-colored material scattered on a textured, reddish-brown surface. — Needles-like Calcite Crystals within Limegrits in a region of Pb/Zn Ores Occurrence Metwally Hamza

Close-up of a textured surface resembling salt crystals or mineral deposits. — Growth of Calcite (CaCO3) & Gypsum (CaSO4.2H2O) on Lead/Zinc Ore Deposits Metwally Hamza

Rock slab with fossilized plant fragments against a black background. — Blue schist sample from the Isle of Groix with ferroglaucophane Sophie Graul

Two dark, textured objects rest on a snowy, uneven surface with scattered debris. — Shelly phosphorites from the Aseri deposit. Sophie Graul

Abstract artwork depicting scattered wood and pebbles in muted tones. — Thin section in PPL of shelly phosphorite from the Ülgase deposit, Estonia. Sophie Graul

A black shoe lies partially buried in icy, snowy terrain. — Shelly phosphorite from the Aseri deposit, Estonia. Sophie Graul

Dark object partially submerged in icy, textured surroundings. — Pyritised brachiopod shell fragment from the Toolse phosphorite deposit, Estonia. Sophie Graul

A black feather is encased in ice with scattered bubbles around it. — Pyritised brachiopod shell fragment from the Toolse phosphorite deposit, Estonia. Sophie Graul

A close-up view of a partially frozen, metallic object with striped patterns. — Carbonate-cemented shelly phosphorite Sophie Graul

Person in hoodie stands near a rusted, weathered object in a rocky, desolate landscape. — Typical Supergene Zone of a Cu Deposit Mohammad Goudarzi

Microscopic view of small, irregularly shaped objects scattered on a light background. — Minerals´tiny secrets Petronela Ševčíková

Cacti stand on a rugged shoreline near a salt flat under a clear sky. — Salty Waves at Spiky Shores Andreas Brotzer

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