Specific Gravity and Density in Mineralogy
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Questions and Answers

What is specific gravity a way of expressing?

  • Luster
  • Color
  • Density (correct)
  • Hardness

How is crystal form related to the internal arrangement of atoms in a mineral?

  • It reflects the internal arrangement of atoms (correct)
  • It affects the luster of the mineral
  • It defines the hardness of the mineral
  • It determines the color of the mineral

Which material has a specific gravity similar to that of gold?

  • Silicates
  • Iron
  • Lead
  • Galena (correct)

What technique can be used to determine the underlying periodic crystal structure of a mineral?

<p>X-ray diffraction (C)</p> Signup and view all the answers

What is the external expression of the internally ordered arrangement of atoms in a mineral called?

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

Which physical property does density represent?

<p>Weight per unit volume (A)</p> Signup and view all the answers

What special characteristic helps distinguish Calcite and Dolomite from other minerals?

<p>Reacts to acid (D)</p> Signup and view all the answers

Which mineral exhibits the property of magnetism as a special characteristic?

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

What is the special characteristic of Halite that helps identify it?

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

Which property can be used to distinguish Magnetite from other non-magnetite iron oxides?

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

What mineral exhibits the property of double refraction?

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

Which mineral displays striations as a special characteristic due to mineral twinning?

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

What physical property is useful for distinguishing between minerals with metallic luster?

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

What does the term 'luster' in mineralogy refer to?

<p>The way a mineral's surface scatters light (A)</p> Signup and view all the answers

How is hardness measured in minerals according to the Mohs scale?

<p>Resistance to scratching (B)</p> Signup and view all the answers

Which term is NOT used to describe nonmetallic minerals based on their luster?

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

What does hardness of a mineral reflect directly according to the text?

<p>Internal atomic arrangement and bonding type (C)</p> Signup and view all the answers

Which scale is used to measure the hardness of minerals and ranges from talc to diamond?

<p>Mohs' Hardness Scale (C)</p> Signup and view all the answers

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