This box of 10 rock and mineral specimens is perfect when you need every student in your class to get hands on with specimens. 1 individual box contain:
- Natural Gravel
- Copper Ore
- Rhyolite
- Clay
- Granite
- Flint
- Halite
- Quartz
- Limestone
- Slag
All specimens are mined in the USA. Each box also contains instructional material