Natural Solid Rough Navy-Blue Chalcopyrite Crystal, Mineral Specimen, 16 LBS, 15 OZ, #R233- Blue/Yellow/Tan/Brown/Black/Red colors. You get the 1 rock in the pictures, any questions, just ask, thank you.

This item will be shipped in a USPS medium flat rate box. Ask any questions, thank you.

Chalcopyrite is often confused with pyrite and gold since all three of these minerals have a yellowish color and a metallic luster. Some important mineral characteristics that help distinguish these minerals are hardness and streak. Chalcopyrite is much softer than pyrite and can be scratched with a knife, whereas pyrite cannot be scratched by a knife. However, chalcopyrite is harder than gold, which, if pure, can be scratched by copper.  Additionally, gold is malleable, while chalcopyrite is brittle. Chalcopyrite has a distinctive black streak with green flecks in it. Pyrite has a black streak and gold has a yellow streak.

YouTube - Rockhounding Jasper Crystal Agates 3/7/26, to see more pictures of this rock.