Full of detail, this is a specimen of velvet malachite from Shaba Province in the Democratic Republic of the Congo. This is a form of malachite with long fibrous crystals rather than the more massive form that we are more familiar with. It actually has some shine to it, especially if you move it in light. It looks good from either side. It is discreetly mounted on a polished black onyx base.
9/16 inch (1.4 cm) wide, 1/2 inch (1.3 cm) deep, 1/2 inch (1.3 cm) tall.