I started my company Marin Mineral in 1999. I provide fine mineral specimens to collectors and offer high quality minerals of a wide variety of species with an emphasis is on aesthetic and/or unusual specimens and gem crystals. The minerals presented on this site are accurately described and photographed to the best of my ability – my goal is for the customer to receive a specimen that looks the same in hand as it does on the screen. Using my many years of experience with minerals, I provide my customers with the finest and most interesting minerals at the best possible prices. I purchase collections, from a few pieces to entire collections. If you are a collector interested in upgrading or selling your collection, please feel free contact me with any questions regarding the sale of your minerals.