Unique amber-yellow to blue- (and purple-) zoned fluorite crystals up to 1.8 cm (!) as an impressive & sculptural matrix piece. The well-isolated crystals are showing purple to blue zones and ingrowing golden chalcopyrite crystals inside - especially when backlit. Backlit the piece partly and you will see the sharp determinated cor zones inside. This spectacular piece comes from Frohnau, Ore Mts., Saxony, Germany. Recent find in 2014. Pieces in such best condotion are hard to obtain!