Chrysocolla is a hydrated copper silicate with hues ranging from sky-blue to blue-green. Known since Antiquity, this stone was used as a decorative pigment in Egypt, then as a component in certain medieval paintings. Today, it is mainly found in the oxidized zones of copper deposits, where it forms alongside malachite and azurite. Our catalog offers a variety of natural chrysocollas, some of them partially silicified, ideal for collecting or ornamental purposes.