DK, "Whats that Rock or Mineral: A Beginner's Guide"
English | ISBN: 1465415920 | 2014 | 128 pages | PDF | 24 MB
English | ISBN: 1465415920 | 2014 | 128 pages | PDF | 24 MB
Compact and portable, What's That Rock, Mineral or Gem? is an indispensable beginner's pocket guide to identifying the 150 most common North American rocks and minerals.