This is a large, excellent example of a plate of an incalculable number of Arsenopyrite crystals exhibiting pseudo-octahedral morphology, some elongated, and with characteristic steel gray color and metallic luster.  5.02" x 3.25" x 1.48" or 127.7mm x 82.7mm x 37.7mm  Particularly large, 5 inches, this specimen presents with what looks like undulating terrain that is heavily crowded with triangular crystals. Close examination under magnification reveals that there are occurrences of quartz clusters nestled amongst the Arsenopyrite. While there is very minor bruising to some of the crystals, it is isolated to near to the edges and on the sides of the piece as would be expected. This is truly a terrific display of Arsenopyrite crystals for your collection or to give as a gift.  679 grams.

Measures 5.02" x 3.25" x 1.48" or 127.7mm x 82.7mm x 37.7mm

Source / location: Julcani Mine, Julcani District, Angares Province, Huancavelica, Peru.