ID Chart - MOHS Hardness Scale - Rock and Mineral Collection

  • Great earth science resource - Chart with samples on the Mohs Hardness Scale
  • Includes numbers 1-9 (all except diamond)
  • Specific samples included are Talc, Gypsum, Calcite, Fluorite, Apatite, Feldspar, Quartz, Topaz, Corundum
  • Wonderful for Science Fair presentations on Rocks, Minerals or Geology
  • The chart measures 8 1/2" x 5 1/4" with samples affixed to a sturdy card with ziplock protective plastic covering
Includes 9 genuine rocks/minerals/gemstones that are one through nine on the Mohs Hardness Scale. The Moh's scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German geologist and mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science.

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