SHARP, GEMMY crystals of this extremely rare species, textbook in form, to just under 2 mm poke out from protected pockets in this small matrix. The billietite are the orange crystals, easily seen and eye-visible in every facert. Becquerelite occurs on this piece as unusually gemmy, transparent yellow crystals underelaying the Billietite. Both species are simply high quality crystals, and stunningly beautiful under a loupe. Although a small piece overall, it is highly significant. TYPE LOCALITY for both species