Which scale is used to measure the hardness of minerals? (MCAER 2012)

✔Explanation: The Mohs Scale is a relative scale ranging from 1 to 10 that categorizes minerals based on their scratch resistance. It is a simple and widely used method for identifying minerals in the field.

📌 Other Options Explanations:
-Option A: Richter Scale: Measures the magnitude of earthquakes.
-Option C: Beaufort Scale: Measures wind speed.
-Option D: Brinell Scale: Measures the hardness of metals.

🔑 Key Points:
-In general, Mohs invented a scale of hardness based on how one mineral scratched another. The Mohs’ scale is not a linear scale. Instead, it ranks gems on a relative scale based on their scratch hardness.
-Hardness is measured by scratching the mineral with series of substances of known variation in hardness using the Mohs scale.