Scale of Hardness Collection

Product Number: SB14255

No longer avaliable

This item has been discontinued

Sorry, this product is no longer available. This collection is the traditional Mohs’ scale, which assigned a “hardness” to 10 key minerals with talc No. 1 (the softest) and diamond No. 10 (the hardest). The first nine minerals are included in this set. The 1 specimens are numbered in a compartmentalized container.

Item Weight: 0.88
Brand: American Educational Products
Prop 65:


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