Goethite and Calcite    1,400 Foot Level, Geevor Mine, Pendeen, Cornwall, England.  Ex. Dr. Steve Chamberlain collection.  This plate of crystals measures 7 x 5 x 1.2 cm and has small calcites on both sides on chocolate brown goethite (some of which is crystallized).  One tiny chip on edge otherwise a damage-free floater.  This is an interesting Cornish specimen.  $90