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

Author Question: Students new to mineral identification often confuse shiny, dark-colored nonmetallic minerals for ... (Read 50 times)

jazziefee

  • Hero Member
  • *****
  • Posts: 505
on: Jul 16, 2018
Students new to mineral identification often confuse shiny, dark-colored nonmetallic minerals for those minerals with a metallic luster. Explain how streak can be useful for telling these minerals apart.
 
  What will be an ideal response?

Question 2

Two unknown minerals are placed before you for identification. You decide to test each mineral's hardness. Mineral A will scratch a piece of glass. Mineral B will not. Which mineral is harder? How do they compare to the specific hardness of the glass?
 
  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

dlook33

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: Metallic minerals generally have a dark-colored streak, whereas nonmetallic minerals generally have a light-colored streak.

Answer to Question 2

Answer: Mineral A is harder. Specifically, it is harder than glass (5.5) because it made a scratch. Mineral B is softer than 5.5 because it did not scratch the glass.


jazziefee

  • Member
  • Posts: 505
Reply 2 on: Jul 16, 2018
Excellent

bblaney

  • Member
  • Posts: 323
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Mapping Dark Matter Mapping Dark Matter
Angry jeers from whites rain down on Elizabeth Eckford, one of the first African American students ... Angry jeers from whites rain down on Elizabeth Eckford, one of the first African American students ...
It may be difficult for patients to get the vital minerals they need from their diets, so ... It may be difficult for patients to get the vital minerals they need from their diets, so ...
Selected Minerals Used for Pharmactherapy Selected Minerals Used for Pharmactherapy
Calculation of the Value of Depletion for the 14 Most Important Minerals Calculation of the Value of Depletion for the 14 Most Important Minerals
Tickets for the school play were $3 for students and $5 for all others. The box office sold 750 ... Tickets for the school play were $3 for students and $5 for all others. The box office sold 750 ...
Video: The Hypothalamus: The Body's Thermostat (Human Thermostat)

For a complete list of videos, visit our video library