Malachite is a copper carbonate mineral that forms in circular patterns through a secondary process in the oxidation zone of copper ore deposits. It is the copper content that gives it its green color. The less water in the copper, the darker it will be. The absence of water completely will produce a black striping.
Chemical Formula: Cu2CO3(OH)2
***NOTE TO BUYER***
This is a "random selection" listing. You will NOT receive the exact item photographed in the listing, but one that is very similar. However, due to the unique nature of each mineral, the size, shape, and color may vary slightly.
Please reference secondary photos for examples of variations within the product. If you have certain specification requirements, please reach out via email.