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Author Question: Quartz has a specific gravity of about 2.65. A 5-gallon bucket of water weighs 40 pounds. How much ... (Read 79 times)

big1devin

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on: Jul 14, 2018
Quartz has a specific gravity of about 2.65. A 5-gallon bucket of water weighs 40 pounds. How much would a 5-gallon volume of solid quartz weigh?
 
  What will be an ideal response?

Question 2

Describe the characteristics a substance must possess in order to qualify as a mineral, and then describe which of the following cannot be minerals, listing a specific reason for each.
 
  a. Gold nugget
  b. Seawater
  c. Quartz
  d. Cubic zirconia
  e. Obsidian
  f. Ruby
  g. Glacial ice
  h. Amber
  What will be an ideal response?


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ky860224

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Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: It would weigh 106 pounds, because specific gravity is the ratio of a mineral's density to the density of water, which is 1.0 gram per cubic centimeter. So 5 gallons of quartz would weigh 2.65 times as much as 5 gallons of water. 40 times 2.65 is 106.

Answer to Question 2

Answer: Minerals are (1) naturally occurring (2) inorganic (3) solids that (4) possess an orderly crystalline structure and (5) a characteristic chemical composition. Gold is a mineral; seawater isn't because it isn't solid; quartz is; cubic zirconia isn't because it's not naturally occurring; obsidian isn't because it lacks an orderly crystalline structure; ruby is; glacial ice is; and amber is not because it lacks an orderly crystalline structure.


big1devin

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Reply #2 on: Jul 14, 2018
TY


ky860224

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Reply #3 on: Jul 14, 2018
Happy to Help


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