Watch a video of this specimen by following the Vimeo link below: https://vimeo.com/1118541061/1be2177f83 This is a superb specimen of acanthite, showing an elongated skeletal twinned crystal shape, 2.5 cm in length which is big for the species! It comes from a major discovery made in Hongda mine several years ago, ranking among the best discoveries for the species in history. Comes with a high quality acrylic base for display.