Minium is a RARE secondary alteration product of lead. This brick-red specimen is SOLID minium, either as microcrystals or in massive form. A very well-placed, 7 mm cluster of lead microcrystals dominates the front of the scupltural matrix and lead microcrystals are scattered on other faces and in vugs on this rare mineral from a very UNCOMMON Utah locality - the iron mines near Cedar City. The iron mines operated from 1851 through the 1980s. Ex. Charles Hansen Collection, a noted California collector. Hefty for the size (lead, of course) at 282 grams or 9.9 ounces.