close pyrite crystals also known fool gold exhibiting metallic luster and

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Close-up of pyrite crystals, also known as fool's gold, exhibiting a metallic luster and
   
   
   
   
   
   
   
Close-up of pyrite crystals, also known as fool's gold, exhibiting a metallic luster and brassy yellow color. The crystals are cube-shaped with some showing iridescent tarnish, hinting at oxidation. Pyrite is an iron sulfide mineral and often forms in sedimentary rocks like shales and limestones. Its shiny appearance and crystal structure make it visually striking, often mistaken for real gold.

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