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Crystals

Crystals

14 items

Oval rock sample on a grey background, with an orange rim enclosing milky white and translucent calcite crystals and a small cavity of rounded crystals. — Calcite Crystals from Egypt’s Eastern Desert Ahmed-M- Mohy

Black-and-white electron micrograph of a single calcite crystal shaped like an imperfect cube, each of its three visible faces pitted with a rough, fringed hollow. — Wannabe cubic calcite Joanna Dziadkowiec

Close-up of a cluster of large translucent white and grey crystals with flat faces and stepped edges, overlapping in jagged blocks and casting soft shadows on one another. — Geometrical shadows cluster Alice Staro

Close-up of green leaves and red twigs encased in clear ice, with long icicles hanging from them like small trees, and streaks of falling rain behind. — Forest of Tree-like Ice Crystals Roshanak Tootoonchi

Close-up of a large ice crystal hanging from a ceiling, built of fine stepped plates and needles radiating outwards, in cold blue-grey tones with blurred crystals around it. — Ice crystal growing under extreme conditions on Greenland Ice Sheet Ole Zeising

Full disc of Earth on black showing the Americas and swirling white clouds, with a circular zoomed inset of a tiny spot glinting red, yellow and blue, a heading reading 4th July 2018 and a web address below. — Ice clouds create festive sparkle on the US national holiday Alfonso Delgado Bonal

Full disc of Earth on black showing North and South America, swirling white clouds and a tiny coloured glint over Mexico, with a heading reading 4th July 2018 and a web address below. — Ice clouds sparkle on US national holiday Alfonso Delgado Bonal

Close-up of a snow bank covered in feathery white ice crystals that glitter in low sunlight, with soft blue shadows between the mounds. — Scottish snow crystals Phoebe Morton

Low view along a shallow reddish-brown stream channel lined on both sides by thick crusts of white crystalline salt, with a red hill and a grey-green rocky slope behind under a deep blue sky. — The Mysterious Salty Earth David Martin Freire-Lista

Polarised-light micrograph of a heart-shaped cluster of crystals in pink, orange, purple and blue-striped tones, set in a dark speckled groundmass. — The Heart of a Stone Bernardo Cesare

Polarised-light micrograph of a large bright blue crystal with a dark rim and cracks, surrounded by a dense mesh of small needle-shaped crystals in pink, yellow and blue. — Blue Olivine in an unusual basalt Bernardo Cesare

Many small white salt crystals, square and flat, floating on calm water that shifts from olive-yellow to dark blue. — Fleur de Sel Naturelle! Eoghan Holohan

Reflection of two people standing on a white salt shore, seen in a greenish pool of water dotted with floating salt crystals, with blue sky and clouds reflected around them. — Contemplation of a Constellation of Salt Crystals Eoghan Holohan

Electron micrograph of large rounded spheres covered in tiny flaky crystals, crowded together on a surface strewn with many small rice-shaped grains. — Experimental quenched magma Thomas P. Ferrand

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