This is a fantastic group of skeletal acanthites on calcite from Fresnillo. The calcite is cleaved on the bottom and back side, but the other sides are crystal faces. I like the dendritic growth of the acanthite and how it looks like a starburston top of the calcite. For over 30 years I have been making trips to Mexico to buy silver minerals. Usually the crystals are loose, with no matrix. Finding a piece this nice on contrasting white matrix is very unusual. Needs a little support in back to stand as shown.
4 x 2.4 x 2.9 cm.