World of Tourmaline the Gerhard Wagner Collection by Gunther Neumeier

“World of Tourmaline: The Gerhard Wagner Collection” by Gunther Neumeier is a hardcover book in English focusing on the world of tourmaline minerals. With a focus on nature, geology, and science, this book is a must-have for collectors interested in this unique and colorful gemstone. The author, Gerhard Wagner, provides insights into the world of tourmaline, making this book a valuable addition to any collection.” Brand new, still sealed.