Moh's Scale of Hardness Boxed Set Available Upon Request

A scale which details the hardness and strength of each mineral starting from soft minerals such as Talc which can be scratch with your own finger nail to very hard specimens which can only be scratched with a steel nail, to Diamond which cannot be scratched with other matter aside from another diamond. The boxed is supplied in a sturdy card board box complete with a photo data sheet attached to the inside of the lid. Specimens included are: 1) Talc 2) Gypsum 3) Calcite 4) Flourite 5) Apatit 6) Orthoclase Feldspare 7) Quartz 8) Topaz 9) Corundum 10) Empty space for diamond. *DIAMOND IS NOT SUPPLIED*