Simon & Schuster's Guide to Rocks and Minerals Book techniques Field tests have proven that

Field tests have proven that the SDC 2300 will find much smaller gold than the GPX 5000

the MD20 will be a necessary tool for every serious prospector

Available in your choice of 3 sizes

Wired with Clips and Leg Leveler Kit

Simon & Schuster's Guide to Rocks and Minerals Book techniques Field tests have proven thatSimon & Schuster's Guide to Rocks and Minerals Edited by: Martin Prinz, George Harlow, Joseph Peters. The American Museum of Natural History Paperback. 607 Pages. Published 1078. An easy to use field guide that contains everything rock and mineral enthusiasts need to know with more than 1,000 spectacular illustrations600 in full color! Practical, concise, and easy to use, Simon & Schusters Guide to Rocks and Minerals contains everything that the rock