Brian Kosnar - Mineral Classics http://www.minclassics.com Recent blog posts from my shop. en-US ⚒ The story of the great Ferrokesterites from the San Jose Mine, Oruro Department, Bolivia ⚒ An intriguing story of how the mistaken identification of a rare mineral species became the discovery of the finest specimens in the world of an exceptionally rarer species. This is one of those once in a lifetime stories where something believed to be of moderate significance ends up being something much more valuable. Mon, 07 Sep 2020 20:38:27 -0400 https://www.minclassics.com/post/960459024359/the-story-of-the-great-ferrokesterites https://www.minclassics.com/post/960459024359/the-story-of-the-great-ferrokesterites?pub=1599525507