This copper specimen includes very sharp dodecahedral crystals, along with more elongated and rounded crystals as well. The crystals have a dark patina, along with minor cuprite patina in places. The specimen is from a famous underwater find in Lake Superior, the Laker Pocket, which was discovered and recovered by Bob Barron and Karl Peterson in August 2008. From the Pete Richards Collection – he acquired it from Bob Barron in April 2009. These are great copper crystals!