Learning Toys

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Dinosaurs Rock Mineral Collection and ID Chart 9 Real Specimen Mohs Hardness Scale Rock

Dinosaurs Rock Mineral Collection and ID Char...

Includes 9 genuine rocks/minerals/gemstones that are one through nine on the M... Includes 9 genuine rocks/minerals/gemstones that are one through nine on the Mohs Hardness Scale. The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a... more

as low as $24.99

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EISCO Moh s Hardness Kit 12 Pieces - Includes 9 Rock & Mineral Specimens 1 Each - Geology Activity for Exploring & Identifying Minerals Using Moh s Hardness Scale - Tech Cut Roc

EISCO Moh s Hardness Kit 12 Pieces - Includes...

Product Description Eisco Scientific started over 50 years ago as a small fami... Product Description Eisco Scientific started over 50 years ago as a small family-owned manufacturing company serving the science education marketplace. Since then we have grown into a multinational corporation with headquarters located in both India... more

as low as $34.49

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