A vast mounted set of 50 rocks and minerals found in the United States. This collection emphasizes incredible variety, and covers the full range of sedimentary, igneous, and metamorphic rocks. Featuring rocks and minerals such as scoria, pyrite, oil shale, sulfur, pyrolusite, jade, calcareous tufa and corundum this comprehensive set boasts both familiar and lesser known specimens. A comprehensive handbook is included, which defines key terms, gives the specific gravity and hardness as well as a brief description for each rock and mineral. An excellent study tool for those with an interest in geology, or a great gift to introduce a loved one to the diversity of US geological formations.
See the solar system in action!
Build your own 10 inch kaleidoscope with this great kit!
Learn about hydrogen fuel cells with this incredible kit!
An ancient toy featuring optical illusion and hands-on fun that never grows old!
This SUPER Erector Construction set is one of the best you'll find anywhere!
Build 14 assorted solar robots, some of which can travel over water!
At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.