Crystallized Green Carbonate of Copper

This came from nearly the same spot as the last, and is equally rare. The crystals are nearly the same, and only differ in being thicker, and having truncations. We are enabled to show whole crystals, as my kind correspondent sent me some that were found loose. It is always an interesting discovery in the true science of Mineralogy to find the crystals of any substance, that when thoroughly acquainted with it, we may be less at a loss to know it without analysis, so that it may often prevent the destruction of a rare specimen. We, therefore, without analysis, consider these crystals as the same with what we have less perfectly crystallized from other places, as Wales, &c.