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en.wikipedia.org/wiki/Mohs_scale_of_mineral_hardness

The Mohs scale of mineral hardness is a qualitative ordinal scale characterizing scratch resistance of various minerals through the ability of harder material to ...

simple.wikipedia.org/wiki/Mohs_scale_of_mineral_hardness

Mohs scale of mineral hardness is named after the scientist, Friedrich Mohs, who invented a scale of hardness based on the ability of one mineral to scratch ...

geology.com/minerals/mohs-hardness-scale.shtml

The most commonly used test of mineral hardness is Mohs Hardness Scale.

www.minsocam.org/msa/collectors_corner/article/mohs.htm

The Mohs' hardness scale was developed in 1822 by Frederich Mohs. This scale is a chart of relative hardness of the various minerals (1 - softest to 10 ...

www.amfed.org/t_mohs.htm

In 1812 the Mohs scale of mineral hardness was devised by the German mineralogist Frederich Mohs (1773-1839), who selected the ten minerals because they ...

www.newworldencyclopedia.org/entry/Mohs_scale_of_mineral_hardness

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.

www.gemrockauctions.com/learn/technical-information-on-gemstones/mohs-hardness-scale-for-gemstones

Feb 26, 2012 ... The MOHS scale of hardness is universally used when describing gemstones. But what does it mean and how can you use it help protect your ...

www.rockrollers.com/features/hardness.html

MOHS HARDNESS SCALE. Wax 0.2, Graphite 0.5-0.9. 1, TALC, Soapstone 1, Lead 1.5, Tin 1.5-1.8, Alabaster 1.7. 2, GYPSUM, Halite (Rock Salt 2, Magnesium  ...

www.britannica.com/science/Mohs-hardness

Aug 11, 1998 ... Mohs hardness, rough measure of the resistance of a smooth surface to scratching or abrasion, expressed in terms of a scale devised (1812) ...

scienceviews.com/geology/mohs.html

Hardness of a rock or minneral is its resistance to scratching and may be described relative to a standard scale of 10 minerals known as the Mohs scale. F. Mohs ...