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

Caption: Red spinel on calcite. Spinel is a mineral, magnesium aluminium oxide (MgAl2O4). In its pure form it is colourless, but small amounts of chemical impurities create myriad hues. The red variety of gem quality has a specific name: ruby spinel. Calcite is a stable form of calcium carbonate, and is the main constituent of limestone, chalk and marble.

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Keywords: 2, 30 seconds or greater, aluminium, caco3, calcite, calcium carbonate, chemical, chemistry, compound, crystal, crystalline, crystallised, crystallized, crystals, earth science, environment, gem, gemstone, geological, geology, impurity, magnesium, magnesium aluminium oxide, mgal2o4, mineral, mineralogy, natural, nature, no-one, nobody, one specimen, precious, raw, red, rock, rotating, rotation, ruby spinel, sample, semi precious, semi-precious, specimen, still life, still-life, studio shot, turntable, two, white background

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Spinel on calcite

K004/4885 Rights Managed

Downloadable master

Duration: 00:00:34.03

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 924.1M

Original

Capture format: Sony FS700

Codec: Apple ProRes 422 HQ

Interlaced: Yes

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