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Mohs Mineral Hardness Scale Set 

 
$28

 
NOW $14 only! 

Any aspiring geologist will love this set of 9 Mohs Scale of Hardness minerals. Numbered specimens allow you to accurately determine hardness to identify rocks and minerals you collect. Nine of the 10 hardness levels are included (all but diamond, the hardest). Size averages 1-2" for all specimens. Packed in a nice divided box with identification key. 
Ages 10 & up.

 
This Awesome Science Kit (for the awesome people like you) comes with 9 mineral specimens, a Guide Book, Magnifier, Nail and streak plate. 

The (9) specimens: gypsum, talc, calcite, fluorite, apatite, orthoclase, quartz, topaz and corundum. Includes a small magnifier, nail, ceramic streak plate, tray and an instruction pamphlet. 

You will learn to test, classify and identify using the tools, guide and mineral specimens included in this kit. 

You can use other common objects (not included) to supplement this scale as follows:

• Fingernail (hardness = 2.5)
• Copper coin (hardness = 3.5)
• Window glass (hardness = 5.5)
• Steel file (hardness = 6.5)

Amazon Customer Review:

The Moh's Hardness kit is great for showing streak and hardness for when I teach about rocks and minerals. It comes with rock samples and what you need to show the "1 though 10" scale of hardness. It gives that "little extra something" when you're teaching this particular concept.