I have seen a large number of boltwoodite specimens over the years, but seldom have I seen a piece with all the attributes of this one: excellent coverage in a large specimen; color and color contrast to the dark calcite beneath; and overall quality to the crystals. Seldom do you get all this in a nice, rich, display-worthy specimen. Boltwoodite is both rare and beautiful, and the pieces from this locality are the best from the collector's point of view in my opinion. This piece, for the size and overall display, is one of the very best I have seen for sale in years. The largest cluster here is 1 cm across! (mid-left, protected in pocket depths)