earth science - mixed final exam review: units 1 & 2\ndo now:\n1. observe the mohs scale of hardness. would…

earth science - mixed final exam review: units 1 & 2\ndo now:\n1. observe the mohs scale of hardness. would fluorite scratch a steel file?\n2. what is the general rule for mohs scale of hardness?\n3. reflecting on units 1 and 2 review so far, what is one thing that you are still confused about or need to go over for better understanding?

earth science - mixed final exam review: units 1 & 2\ndo now:\n1. observe the mohs scale of hardness. would fluorite scratch a steel file?\n2. what is the general rule for mohs scale of hardness?\n3. reflecting on units 1 and 2 review so far, what is one thing that you are still confused about or need to go over for better understanding?

Answer

Answer:

  1. No.
  2. A mineral with a higher Mohs - scale number can scratch a mineral with a lower Mohs - scale number.
  3. (Answer will vary depending on the individual's understanding. For example) I'm still confused about how to accurately determine the hardness of some minerals in real - life situations.

Explanation:

Step1: Check Fluorite and steel file hardness

Fluorite has a Mohs hardness of 4, and a steel file has a Mohs hardness of about 6.5. Since 4 < 6.5, Fluorite cannot scratch a steel file.

Step2: State Mohs scale general rule

The Mohs scale is a relative hardness scale. Minerals with higher numbers on the scale are harder and can scratch those with lower numbers.

Step3: Provide a sample response for self - reflection

This is an open - ended question, and the response depends on the individual. The example given shows a common area of confusion related to the practical application of the hardness concept.