Dims: 3.26x2.84x2.38" (8.28x7.21x6.04cm)
Wt: 14.56oz (412g)
This hand specimen is a dense cluter of tiny clear quartz crystals, largely covered with a variety of sulfides. The largest crystals are sphalerite crystals which appear black except at fracture areas where the translucent and yellow color of the spalerite is apparent. The majority of the crystals are of bournonite, with a complex shape and curved patterns of striations. Under a loupe, these are quite appealing, and they have a silver color with a slight tarnish. There are a few larger crystals of chalcopyrite, too, with a golden color and slightly irridescent finish. There are tiny crystals of galena visible, too, recognizable by their silver color, bright luster, and cubic growth patterns.