Fluorescent minerals willemite (green, zinc silicate Zn2SiO4) and calcite (red, CaCO3) glowing under UV light.

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Photo credit: © GreenSc / Alamy / Afripics
License: Licensed
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Keywords: background, black, calcite, collection, colorful, crystal, crystalline, crystals, fluorescent, franklin, geological, geology, glow, glowing, green, jersey, mineral, mineralogy, natural, nature, ore, science, silicate, specimen, ultraviolet, willemite, zinc