A matrix of massive pyrite hosts numerous sharp crystals of polybasite to 3mm. The polybasite is located in small vugs present across the piece and has a shiny grey color. Interesting old mineral specimen and a hard to find location piece, to say the least - anythign from this era of Nevada history is hard to come by. Former A.F. Holden of Cleveland, Ohio, collection. Notes on back of label indicate the piece was obtained from H.S. Burritt. 8.0 x 5.8 x 5.6 cm