Download or read book Gemstones and Minerals written by John Sinkankas and published by . This book was released on 1961 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prospecting and collecting trips; Tools and how to use them; Rock classes and how to recognize them; How mineral deposits form; Field features of mineral deposits; Collecting practices; Preparation of specimens; Storage and exhibit; Marketing mineral specimens and gemstones.