A fine and typical matrix of cellular Quartz hosts a bunch of vugs, richly lined with well developed, octahedral Libethenite crystals. The Libethenite crystals are very sharp edged and highly lustrous. They have deep green colour and they are almost pristine. A super rich specimen from the type locality Ľubietová (Libethen in German) of Banská Bystrica in Slovakia. Such material from this locale is exceeding hard to obtain nowadays. Ex Dr. N. Pesl of Vienna collection.