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Mohs scale
(redirected from Mohs scale of mineral hardness)

    Also found in: Medical, Encyclopedia, Wikipedia 0.13 sec.

Mohs scale

Scale of hardness for minerals (in ascending order): 1 talc; 2 gypsum; 3 calcite; 4 fluorite; 5 apatite; 6 orthoclase; 7 quartz; 8 topaz; 9 corundum; 10 diamond.

The scale is useful in mineral identification because any mineral will scratch any other mineral lower on the scale than itself, and similarly it will be scratched by any other mineral higher on the scale.



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