A large, heavy mass that's nearly all silver minerals, this is a rich specimen covered with the ropey wires and radiating arrays of Kongsbergite and dull black Acanthite showing a few crystals but mostly in masses. Kongsbergite is a mercury rich silver (only about 5% the rest is silver) it is relatively uncommon, and some of the wires here may be pure silver as well. There are only a few tiny bits of quartz to be found on this otherwise it is an all silver specimen.
A pinkish matrix of crystalized Microcline is host to many yellow- green crystals of Fluorapatite many of which are doubly terminated. These crystals are a little greener than the classic Mexican Mercado examples and with a very different matrix. This is not a common locality. There are some broken crystals evident.