Credit: RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA/SCIENCE PHOTO LIBRARY

Caption: Desert rose of gypsum crystals. Petal-shaped crystal aggregates of tabular gypsum (hydrated calcium sulphate), which form in arid regions such as the Sahara Desert. The process is a result of early mineral diagenesis (formation of rock from a sediment), especially in salt flats where water evaporation rates are high. The crystals commonly incorporate aeolian (wind-blown) sand grains which contribute to the mineral colour and give it a sandy crystalline texture.

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Keywords: 30 seconds or greater, calcium sulphate, caso4·2h2o, chemical, chemistry, compound, crystal, crystalline, crystallised, crystallized, crystals, desert rose, earth science, environment, evaporate, evaporation, geological, geology, gypsum, hydrated calcium sulphate, mineral, mineralogy, natural, nature, no-one, nobody, one, raw, rock, rotating, rotation, sample, sand, specimen, still life, still-life, studio shot, tabular, turntable, white background

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Gypsum

K004/4918 Rights Managed

Downloadable master

Duration: 00:00:35.2

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 851.7M

Original

Capture format: Sony FS700

Codec: Apple ProRes 422 HQ

Interlaced: Yes

Please contact Science Photo Library if you require the original, or other formats.

 

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