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Author Question: Use the absolute hardness scale (Figure 2.4) to determine how many times harder fluorite is than ... (Read 66 times)

CBme

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on: Jul 16, 2018
Use the absolute hardness scale (Figure 2.4) to determine how many times harder fluorite is than gypsum.
 
  What will be an ideal response?

Question 2

Why is color not always a useful property in identifying a mineral?
 
  What will be an ideal response?


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CourtneyCNorton

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Reply #1 on: Jul 16, 2018
Answer to Question 1

According to Figure 2.4, fluorite is 20 times harder than talc and gypsum is 2 times harder than talc, so fluorite is 10 times harder than gypsum.

Answer to Question 2

Color is not a useful property in identifying a mineral because a mineral's color can vary significantly with very small changes in composition and because many different minerals can be the same color.


CBme

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Reply 2 on: Jul 16, 2018
YES! Correct, THANKS for helping me on my review

essyface1

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Reply 3 on: Yesterday
Excellent

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