Verified Answer :

The scratch test.

The scratch test is used by scientists and people who study rocks and minerals to determine the strength of the rock. They have the scratchers numbered one through ten and scratch the rock or mineral until the scratcher makes a mark in the mineral then they know the strength of the rock.

Hardness is a quantification of how easy it is for a compound or an object to be scratched or to be pierced.

  • The hardness of unknown minerals can be determined by using a method called the Scratch test.

  • By using this method one can determine the hardness of an unknown mineral.

  • There are different types of scales present and numbered which tells the number of hardness.

  • The mineral to be tested is held securely and then it is scratched with a pointed object or a tool.

  • The scratch is compared with the relative resistance.

Therefore, the Scratch method can be used to determine the hardness of minerals.

To learn more about hardness follow the link given below:

https://brainly.com/question/21944345

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