A world-class cluster of perfectly terminated cubic pyrite crystals interlocked on its natural basalt matrix. This is a huge and unique piece - as less than a handful are found per year. This piece was discovered in Navajun, Spain - considered one of the finest locations in the world for pyrite. This specimen has huge cubic crystals for the species. The cubes are completely natural, uncut, and unpolished. These crystals form naturally in the basalt, exactly the way you see them. This specimen is museum quality - with no damage, top luster, and perfect aesthetics. You will receive the exact object in these photos.