Amethyst over black background, a violet variety of quartz, often used in jewelry. Silica, silicon dioxide, SiO2.

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Photo credit: © Peter Hermes Furian / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: amethyst, background, birthstone, black, close-, crystal, dioxide, february, gem, gemstone, geode, geology, healing, jewelry, magenta, mineral, mineralogy, precious, purple, quartz, semiprecious, silica, silicon, sio2, stone, structural, variety, violet