BORNITE WITH NATIVE SILVER #18

SALE ITEM IS SAME AS PICTURE SHOWN 

BORNITE COPPER ORE (Cu5FeS4, AKA PEACOCK COPPER) WITH A SEAM OF NATIVE SILVER (AG) IN THE BORNITE.. THE SPECIMEN IS 2 1/2 X 2 X 1 1/2  INCHES. WEIGHT IS 3.68 OZ.  THE SPECIMEN IS FROM FRESNITTO, ZACATECAS, MEXICO. WHAT A GREAT COLORFULL DISPLAY FOR YOUR COLLECTION. VERY INTERESTING SPECIMEN ON THE FORMATION OF MEXICIAN SILVER.