MINERAL HARDNESS SET (INCLUDING DIAMOND)
« backMINERAL HARDNESS SET
(INCLUDING DIAMOND)
The Mohs scale of mineral hardness is based on the ability of one mineral to scratch another. It was created in 1822 by German geologist and mineralogist Friedrich Mohs.
Mohs selected ten minerals of distinctly different hardness that ranged from a very soft mineral (talc) to a very hard mineral (diamond). However, the scale demonstrates relative and not absolute hardness; for example, corundum (9) is twice as hard as topaz (8), but diamond (10) is four times as hard as corundum.
1-Talc, 2-Gypsum (selenite), 3-Calcite, 4-Fluorite (fluorspar), 5-Apatite,
6-Feldspar, 7-Quartz, 8-Topaz,
9-Corundum, 10-Diamond.
This set contains small specimens of each mineral on the scale (incuding diamond) in a lidded card box. It is of academic interest only as the size of the specimens may make them difficult for practical use in hardness testing.
Click on a picture for a larger image
Size: 13 x 10 x 2.5 centimetres (size of box)
Weight: 123 grams
-11300-p.jpeg?v=8D0A3EFC-A53E-46C2-9CAD-D3773509EDB7)
-11300-p.jpeg?v=9CEEDCF0-9C17-4C16-9158-B3469A6388BF)
-11300-p.jpeg?v=1C8CA338-4827-49B4-82D4-4E644376CBC8)
