Smaltite is the arsenic-deficient variety of skutterudite and is quite uncommon worldwide and is rare in display-quality specimens. This is a very rich, sculptural and aesthetic specimen of bubbly/botryoidal, very sparkly, silvery-bright smaltite microcrystals on a very thin sheet of native leaf silver. Exceptionally rich ore here. This is exceptional quality material from the renowned Cobalt-Gowganda area of Ontario. Weighs 72 grams.