The amethyst vein can be seen in the rubble pile from the mining.  Permission must be obtained in order to visit the site.  Yager et al. state: "Banded, light-purple amethyst and milky-white quartz, light-brown sphalerite, and argentiferous galena are some of the species that may be collected on the waste pile (if permission has been obtained).  Stop 5 Yager et al.