Index No: NBM014330; Collected By: ; Sample Type: hand sample; Notes: Quartz vein cutting hematite-stained silt/mudstone; vein fractured, contains fresh and oxidized Fe-rich sphalerite; open spaces between euhedral quartz crystals coated with MnO2; massive sphalerite filling around quartz-crystals , minor galena fills fractures; malachite and cerussite crystals (fine), Fe- and Mn-oxides, yellow-green alteration minerals coat surfaces.