A rare, crystallized shattuckite specimen! The big crystals, such as this, are much more uncommonly seen from any deposit where this species is found, than druses and globular growths. In fact, I believe this is the BEST locale for the species, for such crystals (though it should be noted they are replacements pseudo. after malachite) - and this specimen would host some of the larger ones that I know of. The crystals, to 2 cm on the front display face, form a solid interconnected mound of spraying, elongated, acicular crystals atop a mound of contrasting deep green malachite. The cluster is complete around the backside as well (showing crystals to 3 cm) .