Malachite is a beautiful green stone most often found in association with copper, which lends it its intense color.
Historically, it has long been prized as a decorative stone, and was
incorporated into painters' pigments. It is mined in many places around the
world, including Russia, Africa, and North America, but the best material comes from the Democratic Republic of Congo.
Individual color and markings vary but your item will resemble the pictured examples.