These specimens of wulfenite from the Rowley mine are of the highest quality for the locality. Groups of tabular transparent crystals, very brilliant and with some orange color zoning. Accompanied by small acicular groups of yellow mimetite crystals, which have shown to be near to the hedyphane, by the presence of calcium. They are disposed on a matrix of chrysocolla. The main crystal is: 0,5 x 0,5 cm.