Unlike many other hardness kits, this kit has only pure crystalline minerals to ensure consistent results when testing.
- Hand-Picked Samples
- Housed in a Collection Box
- Kit Has Only Pure Crystalline Minerals
Additional tools in the kit also allow students to test other physical properties.
The hand-picked samples and housed in a collection box.
Ordering information: This kit includes nine samples (talc through corundum), streak plate, glass plate, copper strip, and a magnet.