A couple of years back, we spent 6 months trying to track down the Chinese guy who had these amazing iridescent limonites. We found him outside a hotel at Tucson. There, he had about 65 specimens - the great majority of which were ugly, but some of which had the incredible iridescence and luster you see here. We had to take the entire lot of 65 to get the good ones. This is one of the largest from the find. The micro-botryoidal surface shimmers with an amazing spectral array of colors that look almost unreal! Note that there is no more of this around!