This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Use the absolute hardness scale (Figure 2.4) to determine how many times harder fluorite is than ... (Read 72 times)

CBme

  • Hero Member
  • *****
  • Posts: 548
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?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

CourtneyCNorton

  • Sr. Member
  • ****
  • Posts: 317
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

  • Member
  • Posts: 548
Reply 2 on: Jul 16, 2018
Excellent

ashely1112

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Neurological Flow Sheet, Including Glasgow Coma Scale Neurological Flow Sheet, Including Glasgow Coma Scale
By how many times will the population of bacteria have increased after 6 h? By how many times will the population of bacteria have increased after 6 h?
Slapping tapotement on the bottom of the foot. Slap lightly 4–5 times. Slapping tapotement on the bottom of the foot. Slap lightly 4–5 times.
Press with (A) fingertips into GB-30; or (B) with thumb into GB-30; press 2–3 times. Press with (A) fingertips into GB-30; or (B) with thumb into GB-30; press 2–3 times.
Foundations of American Education: Becoming Effective Teachers in Challenging Times Foundations of American Education: Becoming Effective Teachers in Challenging Times
The system moves at 1.50 2 m/s while the inclined planes are rough. a) Determine the ... The system moves at 1.50 2 m/s while the inclined planes are rough. a) Determine the ...
Video: Alzheimer's Disease

For a complete list of videos, visit our video library