Quartz (var. Amethyst), Amatitlan, Mun. de Zumpango del Rio, Guerrero, Mexico, small-cabinet, 7.5 x 4.1 x 3.1 cm, An intense grape-juice purple amethyst cluster with well-developed phantoms and faint purple caps from the famous finds of 1991 at Guerrero, a find that combined the famous color of the locality with both size and luster.
