This rare and colorful uranium mineral is emplaced on matrix with contrasting white selenite and features glassy, translucent, lemon yellow crystal sprays reaching .6 mm across amidst the selenite. It is a very attractive, high quality specimen from this locality which has produced best of species so far as I know. Carlos Barbosa brought most of them out in the late 1990s and only rarely does a good piece turn up on the market nowadays.