NJ16AL5: Growth on matrix of highly profiled Chalcocite crystals, of considerable size for the species, which form thick twins with a hexagonal outline, with very well defined faces and edges, bright, on matrix, with coatings of Calcite crystals. These specimens were analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain

Specimen size: 8.6 × 8 × 7.6 cm = 3.39” × 3.15” × 2.99”

Main crystal size: 2.6 × 1.6 cm = 1.02” × 0.63”