The Mockingbird Mine, Mariposa County, California

Collector’s Edge Minerals, Inc. recognizes and thanks Rocks & Minerals for permission to use portions or all of their original article from “Rocks & Minerals”, Volume 83, Number 5, pp. 392-400.  Contributing authors were Robert B. Cook, Department of Geology,...

Red Lead Mine, Dundas Region, Tasmania, Australia

Introduction Collector’s Edge Minerals, Inc., through a partnership agreement with the owner, reopened the Red Lead mine in the Dundas Region, Tasmania, Australia in October 2012 to mine high quality crocoite specimens.  Crocoite, a lead chromate, is found in...

Red Cloud Mine, La Paz County, Arizona

IntroductionIn 2001 Colorado Calumet Co, Inc. (CCCI), acquired the Red Cloud mine from Wayne Thompson et.al. The mine is a small silver-lead deposit located in the arid and desolate southwest corner of Arizona, and CCCI worked the claim for two years.   The...