9 results for "Mohs mineral hardness scale" between $0 and $24

Multiple Minerals We've got rocks by the box. You pays yer money and you gets our gallimaufry of geological goodies. The Mohs Kit is a mineral hardness scale set, with (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.

Quantity:  1 - Scale of Hardness Rock Set with Diamond   This is the traditional Mohs Scale with a small raw diamond included. There are ten number coded specimens measuring approximately 1 x 1 1/2 inches (except the diamond, don't you wish!).  The determination of the hardness of a mineral can be an important step toward its identification.  Hardness is the resistance which the smooth surface of a mineral offers to being scratched.  A diamond is the hardest of all substances and can only be scratched by another...

Learn to test, classify, and identify minerals using the tools, guide, and specimens included in this kit. Determining the hardness of an unknown rock or mineral is often very useful in the identification process. Hardness is a measure of a mineral's resistance to abrasion and is measured against a standard scale - Mohs Scale of Hardness. The classic scale for hardness was published in 1822 by Frederick Mohs, an Austrian mineralogist who got the basic concept from scratch tests performed routinely...

To use, compare a mineral to the scale of nine minerals which range in hardness. These include talc, gypsum, calcite, fluorite, apatite, feldspar, quartz, topaz, and corundum. Diamond, the hardest mineral, is not included in this scale. Dimensions: 8.5" x 5.5".

The Mohs Scale assigns "hardness" to 10 key minerals ranging from talc (softest) to diamond (hardest). 9 or 10 minerals, about 1-1/2", number coded.