This is a substantial (not flimsy) sheet of silver still embedded in its bornite matrix. The bornite is a pretty, irridescent purple and blue. In the pic, the grayish material between the two chunks of bornite is the sheet of silver, which extends as a vein inside both bornite chunks, so it is the size of the entire specimen. 4.7 x 4.4 x 1.6 cm