Mineral Scale of Hardness Set, 9 specimens
Any aspiring geologist will love this set of 9 Mohs Scale of Hardness minerals.
Ages 10+
In Stock & Ready to Ship
Need it fast? See delivery options in cart.
Any aspiring geologist will love this set of 9 Mohs Scale of Hardness minerals.
Ages 10+
In Stock & Ready to Ship
Need it fast? See delivery options in cart.
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