Mohs scale of mineral hardness - Revision history

Designing Buildings at 08:51, 11 August 2022

2022-08-11T08:51:05Z

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	The Mohs scale is one of several scales used to describe the hardness of different types of materials. It is considered a useful tool for estimation purposes (since results are immediately visible), but it is not considered an accurate indicator of a material’s genuine endurance characteristics.		The Mohs scale is one of several scales used to describe the hardness of different types of materials. It is considered a useful tool for estimation purposes (since results are immediately visible), but it is not considered an accurate indicator of a material’s genuine endurance characteristics.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	= Related articles on Designing Buildings =

	* Durability.		* Durability.
	* Hardness.		* Hardness.
	* Janka hardness rating scale.		* Janka hardness rating scale.
		+	* Mineral.
	* Outdoor porcelain tiles.		* Outdoor porcelain tiles.

	[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]		[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]

Designing Buildings at 08:58, 26 May 2021

2021-05-26T08:58:45Z

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	= Mineral hardness =		= Mineral hardness =

−	The Mohs hardness scale designates the hardness class of mineral based material. It is used to describe how substances behave when a hard material scratches a soft material. The scale ranges from ~~one~~ to 10, where ~~one~~ is talc (softest) and 10 is diamond (hardest).	+	The Mohs hardness scale designates the hardness class of mineral based material. It is used to describe how substances behave when a hard material scratches a soft material. The scale ranges from 1 to 10, where 1 is talc (softest) and 10 is diamond (hardest).

	The scale is named for its originator, Friedrich Mohs. The German geologist created the scale in 1822 as a method for classifying minerals by their physical properties (rather than by their chemical composition).		The scale is named for its originator, Friedrich Mohs. The German geologist created the scale in 1822 as a method for classifying minerals by their physical properties (rather than by their chemical composition).

Editor at 17:01, 25 May 2021

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	\| 2.5 to 3		\| 2.5 to 3
	\|-		\|-
−	\| ~~Steel~~	+	\| Ordinary steel
	\| 4 to 4.5		\| 4 to 4.5
	\|-		\|-

Editor at 16:59, 25 May 2021

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−	[[File:Diamond.jpg]]	+	[[File:Diamond.jpg\|link=File:Diamond.jpg]]

	= Introduction =		= Introduction =
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	\| 2		\| 2
	\|-		\|-
−	\| ~~Calcite~~	+	\| Gold, silver, aluminium
−	\| 3	+	\| 2.5 to 3
	\|-		\|-
−	\| ~~Quartz~~	+	\| Steel
−	\| 7	+	\| 4 to 4.5
	\|-		\|-
	\| Diamond		\| Diamond

Editor: Created page with "File:Diamond.jpg = Introduction = Archaeometallurgy, Guidelines for Best Practice, published by Historic England in 2015, defines hardness as: ‘…a measurement of the st..."

2021-05-25T16:56:29Z

Created page with "File:Diamond.jpg = Introduction = Archaeometallurgy, Guidelines for Best Practice, published by Historic England in 2015, defines hardness as: ‘…a measurement of the st..."

New page

[[File:Diamond.jpg]]

= Introduction =

Archaeometallurgy, Guidelines for Best Practice, published by Historic England in 2015, defines hardness as: ‘…a measurement of the strength of a material (its ability to resist plastic deformation).’

= Mineral hardness =

The Mohs hardness scale designates the hardness class of mineral based material. It is used to describe how substances behave when a hard material scratches a soft material. The scale ranges from one to 10, where one is talc (softest) and 10 is diamond (hardest).

The scale is named for its originator, Friedrich Mohs. The German geologist created the scale in 1822 as a method for classifying minerals by their physical properties (rather than by their chemical composition).

While this approach differed from scientific contemporary thought, it was aligned with discoveries from the ancient world. Mohs based his scale on the ancient discovery that diamond would scratch quartz, which meant the diamond was the harder substance of the two.

= Ratings =

Some key mineral ratings on this scale include:

{|
| Mineral
| Mohs hardness rating
|-
| Talc
| 1
|-
| Gypsum
| 2
|-
| Calcite
| 3
|-
| Quartz
| 7
|-
| Diamond
| 10
|}

The Mohs scale is one of several scales used to describe the hardness of different types of materials. It is considered a useful tool for estimation purposes (since results are immediately visible), but it is not considered an accurate indicator of a material’s genuine endurance characteristics.

= Related articles on Designing Buildings Wiki =

* Durability.
* Hardness.
* Janka hardness rating scale.
* Outdoor porcelain tiles.

[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]