A very curious specimen formed by a matrix covered by several sphalerite complex and interpenetrated tetrahedral crystals with a metallic luster, with some pyrite. Partially covering the sphalerite a group of galena crystals with curved and dissolved cube-octahedron faces and edges, really interesting.   THE MAIN CRYSTAL IS: 1,5 x 1,4 x 0,7 cm. Fluorescence UVC.

ORIGIN: HUANZALA MINE, HUALLANCA, HUALLANCA DISTRICT, BOLOGNESI PROVINCE, ANCASH, PERU

DIMENSIONS: 7.9x6.5x4.2