Silver, Bornite
San Martin Mine, San Martin, Mun. de Sombrerete, Zacatecas, Mexico
Cabinet, 12.1 x 9.9 x 5.1 cm
This is a very large sheet of native silver still attached to some of the matrix in which it formed as a vein (you can see this chunk on the back side). The sheet of silver here can hardly be called a leaf, as that suggests fragility - and this is a thick and sturdy sheet of silver. The silver has a pretty iridescence about it from the bornite coating.