3.7 x 2.0 x 1.4 cm (largest). A beautiful, aesthetic and contrasting pair of spinel-twinned silver miniatures from the early 1980s finds at the New Nevada Mine at Batopilas, Mexico. The piece on the left is a solid matte of intricate, herringbone-patterned, silver crystals. The spinel-twins have a super patina, with iridescence. The classic specimen on the right features beautifully isolated silver "feathers" etched out of the enclosing snow-white calcite. The silvers also exhibit a nice patina with iridescence. A distinctive and excellent pair of Batopilas silvers.