Mineral Scale of Hardness Set #1, Without Diamond (Specimen Collection)
$21.95
Item
KIT-6397
Mineral Scale of Hardness Set #1, Without Diamond (Specimen Collection)
Relative hardness is one of the common ways to identify minerals. Minerals can be scratched against each other or glass plates to demonstrate relative hardness. This boxed collection contains nine number-coded specimens that represent the first nine minerals of Mohs 10-point scale of hardness. The set also includes a copy of the Mohs scale and instructions. (Glass plates for hardness testing are available in packs of ten; see Related Products, below.) Recommended for grades 5 through 12.
#KIT-6397
Receive 10% off when ordering 10 or more of this item. Upon checkout, discounts for all items are added together and collectively subtracted from the total.
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