The Tourmaline Group - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Tourmaline Group write by Richard Vincent Dietrich. This book was released on 1985-11-30. The Tourmaline Group available in PDF, EPUB and Kindle. Tourmaline group minerals have graced the cabinets of mineral collectors and museums for untold generations. Their colors and color patterns, along with their diverse shapes and associations, have assured their role as exqui site showpieces. Their workability and durability have, in addition, made them favorites among connoisseurs of colored gemstones. Tourmalines, however, are much more than exquisite showpieces and beautiful gemstones. Their diverse crystal forms and unique structure, their variable chemical compositions, their intriguing physical properties, and their widespread occurrence in nearly all kinds of rocks have long attracted the attention of scientists from several disciplines. Furthermore, they have several potential uses in science and industry. From an historical standpoint: Tourmaline is possibly the "Lyngurium" -green at one end, light colored at the other-that Theophrastus (ca.315 B.C.) described in On Stones, the first known book about minerals. Tourma line is one of the minerals thought to have been used as a "sunstone" navigation compass by Vikings during the eighth, ninth, and tenth centuries.
The Tourmaline
The Tourmaline - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Tourmaline write by Friedrich Benesch. This book was released on 2003. The Tourmaline available in PDF, EPUB and Kindle. The qualities of the mysterious tourmaline are unique in the mineral realm. Fourteen years went into creating this volume, including visits to scientific collections all over Europe. Phenomena gave way to outer experience, which led to inner experience and insight; the natural object gave way to natural being. A miracle of nature, the tourmaline is a precious stone, having perhaps the greatest range of figuration and coloring of any gem. The importance of this book is in its lavish illustrations and far-reaching cognitive treatment of the tourmaline. At its heart are approximately 400 color photographs by some of the best photographers. The concluding text takes a Goethean view, explaining how tourmalines came to be invested with such a panoply of meanings, which remained unacknowledged for centuries. This is a book your family will treasure for many generations.
The Cyclopaedia
The Cyclopaedia - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Cyclopaedia write by Abraham Rees. This book was released on 1819. The Cyclopaedia available in PDF, EPUB and Kindle.
A Textbook of Intermediate Physics
A Textbook of Intermediate Physics - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook A Textbook of Intermediate Physics write by Harry Moore. This book was released on 1927. A Textbook of Intermediate Physics available in PDF, EPUB and Kindle.
The World of Tourmaline - the Gerhard Wagner Collection
The World of Tourmaline - the Gerhard Wagner Collection - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The World of Tourmaline - the Gerhard Wagner Collection write by Mary Fong-Walker. This book was released on 2015-01. The World of Tourmaline - the Gerhard Wagner Collection available in PDF, EPUB and Kindle.
