A stunning, SHOWY and AESTHETIC small cabinet sized specimen with cuboid and super-gemmy Apophyllite crystals on minor matrix from Das Antas Tunnel of Rio Grande do Sul. This is by far the best specimen from this uncommon Brazilian locale we ever handled and here we have razor sharp and unusual water clear crystals. The luster is superb and there is no significant imperfection at the display face so far I can see. Old material, collected in the early 1960s during construction of a rail line through the basalt. This is a KILLER PIECE all the way.