Quite rare Arsenic mineral Fulbrightite on Uraninite. Measures over 50,000 cpm on Radiacode 110. 7.7x4x2 I'm56 gramsMesa County, ColoradoC4Rare Arsenic Mineral Fulbrightite on Uraninite $350.00 Regular Price$300.00Sale PriceQuantity*Add to Mining CartBuy Now