Colorful multi-layer specimen of Shattuckite, Dioptase, Calcite and Chrysocolla. On a blue-green Chrysocolla layer covered by white Calcite grow Dioptase crystals and spheres of the rare copper silicate-hydroxide Shattuckite. The Dioptases have rich green color, strong luster and are gemmy. The Shattuckite forms attractive isolated balls with nice blue color. The specimen has strong contrast. Some damages.
Marvelous!