Gorgeous specimen of Dioptase crystals to 13mm on the rare copper silicate-hydroxide Shattuckite. The Shattuckite has botryoidal habit and saturated dark-blue color. Dioptases are lustrous with intense emerald-green color and very sharp, perfectly terminated crystals. Some outer edge Dioptase faces have brown coating. The Dioptase crystals are slightly gemmy. Some green Malachite is present too. In good condition – some outside edges contacts, one partial crack and natural imperfections.

Marvelous!