Mineral Strength and Measurement

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Questions and Answers

Which of the following best describes the tenacity of halite, calcite, and fluorite?

  • Elastic
  • Brittle (correct)
  • Sectile
  • Malleable

Which of the following minerals can be easily hammered into different forms?

  • Talc
  • Copper (correct)
  • Calcite
  • Gypsum

Which of the following minerals can be cut into thin sheets or sections?

  • Fluorite
  • Talc
  • Gypsum (correct)
  • Halite

Which mineral is described as elastic, meaning it reforms its original shape after a stress is released?

<p>Mica (D)</p> Signup and view all the answers

Which of the following is NOT a property used to measure mineral strength?

<p>Density (B)</p> Signup and view all the answers

What is the reason given for why a carbide-tipped blade can cut through steel without dulling?

<p>Carbide is stronger than steel (A)</p> Signup and view all the answers

Which of the following statements about mica is FALSE?

<p>Mica is the same as Formica (D)</p> Signup and view all the answers

What is the primary purpose of the Mohs Hardness Scale?

<p>To rank the hardness of minerals relative to each other (C)</p> Signup and view all the answers

Which of the following statements about the Mohs Hardness Scale is true?

<p>The scale ranks minerals from softest to hardest, but the differences in hardness are not uniform (C)</p> Signup and view all the answers

What is the primary reason for using carbide-tipped blades in construction materials?

<p>Carbide is harder than steel, allowing it to cut through steel nails (C)</p> Signup and view all the answers

Which mineral property describes the tendency of a mineral to break along flat planes of weak bonding?

<p>Cleavage (C)</p> Signup and view all the answers

Why is mica used to make durable washers?

<p>Mica exhibits a high degree of cleavage, allowing it to form flat sheets while retaining its elastic property (B)</p> Signup and view all the answers

Which of the following minerals exhibits an earthy fracture?

<p>Limonite (A)</p> Signup and view all the answers

What type of fracture does quartz exhibit?

<p>Conchoidal fracture (D)</p> Signup and view all the answers

Which of the following statements about cleavage and fracture is true?

<p>Only some minerals exhibit cleavage, but all minerals exhibit fracture (D)</p> Signup and view all the answers

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