Sphalerite (rare locality specimen) Colorado You can see his photo

You can see his photo mining at the Sweet Home on page 58 of Peter Bancroft's book "Gem and Crystal Treasures"

It is associated with a few smaller (but not small by any means) Augelites of similar quality

so don't miss out on a good quality and uncommon piece from a classic Bolivian locality

Some of the Vivianite crystals are doubly terminated

Better quality than the photos indicate

Sphalerite (rare locality specimen) Colorado You can see his photoOne of the VERY FEW Sphalerite specimens that I have seen from the Chicote Grande mine in Bolivia. This mine is best known for its astoundingly fine Japan Law twinned Quartz specimens, which sometimes played host to beautiful jet black Ferberite crystals! Chicote Grande is one of the "forgotten" mines in Bolivia over the last 20 years as very little material has been available. My father, Richard Kosnar, had a stake in this mine in the late 1970s