close-up of bornite mineral stone, also known as peacock ore. shiny crystal tarnish with vibrant blue, green, purple colors.

bornite mineral stone peacock ore crystal tarnish copper blue green purple shiny texture rock geology gemstone macro closeup iridescent colorful color metal metallic mining industrial digging excavation earth mineralogy sample rough abstract background detail natural nature element formation pattern surface crystalline specimen close up raw material structure textured geological