TeXes Science Practice Test

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Friedrich Mohs is famous for which scale related to geological discovery?

Density scale
Temperature scale
Mohs scale
Elasticity scale

The correct answer is: Mohs scale

Friedrich Mohs is best known for creating the Mohs scale of mineral hardness, which ranks minerals based on their ability to scratch one another. This scale, developed in 1812, assigns a value from 1 to 10 to different minerals, with talc rated as the softest (1) and diamond rated as the hardest (10). The significance of the Mohs scale lies in its practical application in geology and mineral identification, allowing geologists and mineralogists to assess the hardness of a mineral sample quickly. The clarity of this ranking system facilitates discussions about mineral properties, making it an essential tool in the field of geology. The other choices, such as density, temperature, and elasticity scales, do not pertain to Mohs' contributions or relate specifically to the classification of minerals in geological studies.