Wow, what a great specimen of Rockcrystal. In this specific case we see a superb museum sized specimen with a stunning 11 cm major crystals. ALL crystals are superbly defined, mirror bright and excellent terminated. An excellent, sharp, highly lustrous, gem crystal group of classic "Bergkristall" Quartz from the Swiss Alps. The yellow colour, due to a wafer-thin coating of Limonite gives this great specimen way more aesthetics and dramatics. The combination of absolutely superb quality specimens with large crystals and unique habits make these pieces as impressive as Quartz gets. The backside of the major crystals has the print of a former "cousin". Only minor edge wear but considering size, quality and overall aesthetics this fact is actually unworth to be mentioned. A stunning alpine specimen with great aesthetics.