| The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. | |
| Collection of 9 Moh's Hardness Set | Size |
| This Collection contains 9 Minerals represents the scale of Hardness Talc (H=1), Gypsum (H=2), Calcite (H=3), Fluorite (H=4), Apatite (H=5), Orthoclase (H=6), Quartz (H=7), Topaz (H=8) & Corundum (H=9) | |
| in Paper Mounted Showcase | 9"x12" |
| in Polished Showcase | 9"x12" |
| in Wooden Box Polished | 9"x12" |
| (In Kit with Magnet, Knife, Streak Plate & Hand Lens) | |
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