Peru is renowned for it's superb Pyrites, and these are classic. Cubic, beveled, and striated, they are lustrous and beautiful. The largest crystal in this cluster is 3 cm on edge, and it is combined with fluorescent Manganocalcite. Excellent, aesthetic, and we have to say that they are much better in person due to the difficulty of photography for something so reflective. This is NOT a normal pyrite specimen.