Rainbow Copper Necklace

This necklace features a pendant made from natural copper with a rainbow patina, highlighting the metal’s ability to oxidize and form colorful surface patterns. Copper’s metallic luster and ductility make it a popular material for jewelry and scientific demonstration. Details: Material: Natural copper with rainbow patina Pendant: Single piece, polished to highlight surface colors Appearance: Iridescent metallic hues ranging from reds and oranges to blues and purples Formation of Material: Copper forms in hydrothermal veins or secondary enrichment zones; surface oxidation creates natural rainbow coloration Physical Properties: Mohs hardness 2.5–3; metallic luster; malleable and ductile Educational Value: Demonstrates native metal formation, oxidation processes, and color changes due to surface chemistry This rainbow copper pendant necklace combines geological interest with wearable art, showcasing the natural properties of copper.