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MOHS Scale Of Hardness W/ Diamond
the Moh’s Hardness Scale collection is set of 10 specimens in their order from the softest (#1 Talc) to the hardest (#10 Diamond ? included).There are indicators on the card which instruct the students what will affect the surface of each of these specimens. This economy version of the Hardness Collection has specimens measuring 1/2″ to3/4″ in size.
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