Crystals and Their Characteristics
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Questions and Answers

What is a crystal?

  • A gas bounded by naturally formed plane faces
  • A homogeneous solid bounded by naturally formed plane faces (correct)
  • A liquid bounded by naturally formed plane faces
  • A mixture bounded by naturally formed plane faces

    • What does the term 'crystalline' mean?

  • Having a regular internal arrangement of atoms (correct)
  • Having an irregular internal arrangement of atoms
  • Not having any internal arrangement of atoms
  • Having only crystal faces

    • Are all minerals crystalline solids?

  • No, minerals can be in any state
  • It depends on the natural environment
  • Yes, all minerals are crystalline solids (correct)
  • Only some minerals are crystalline solids

    • Where do most well-developed mineral crystals occur?

    <p>Lining the walls of open spaces in rocks</p> Signup and view all the answers

    How are many crystals deposited in open spaces in rocks?

    <p>By condensation from gaseous fluids</p> Signup and view all the answers

    What are miarolitic cavities?

    <p>Cavities formed by late-stage crystallization of magma within cavities</p> Signup and view all the answers

    What is a mineral?

    <p>Any material having a regular internal arrangement of its constituent atoms or ions</p> Signup and view all the answers

    In what type of solids is the term 'crystalline' applied?

    <p>Solids with a regular internal arrangement of atoms or ions</p> Signup and view all the answers

    Where do most well-developed mineral crystals occur?

    <p>Inside the cavities of rocks</p> Signup and view all the answers

    How are many crystals deposited in open spaces in rocks?

    <p>By condensation from gaseous fluids</p> Signup and view all the answers

    What type of solids are considered as minerals?

    <p>Crystalline solids</p> Signup and view all the answers

    What is the term used for crystalline solids that do not exhibit crystal faces?

    <p>Amorphous solids</p> Signup and view all the answers

    What is the name for the cavities generally termed miarolitic?

    <p>Cavities kept open by accumulations of magmatic gases and vapors</p> Signup and view all the answers

    What is a crystal?

    <p>A solid with a regular internal arrangement of atoms or ions</p> Signup and view all the answers

    What is the adjective applied to any material having a regular internal arrangement of its constituent atoms or ions?

    <p>Crystalline</p> Signup and view all the answers

    What are well-developed mineral crystals likely to reflect?

    <p>The atomic structure of the crystals</p> Signup and view all the answers

    What term is used for any material having a regular internal arrangement of its constituent atoms or ions?

    <p>Crystalline</p> Signup and view all the answers

    In single crystals, what often reflects the atomic structure?

    <p>Natural shapes of crystals</p> Signup and view all the answers

    What term is used for mineral crystals that exhibit few or no crystal faces?

    <p>Amorphous minerals</p> Signup and view all the answers

    What type of fluids have deposited many crystals in open spaces in rocks?

    <p>Aqueous solutions</p> Signup and view all the answers

    In what type of solids is the term 'crystalline' applied?

    <p>Solids with regular atomic arrangement</p> Signup and view all the answers

    What is the term used for the cavities generally termed miarolitic?

    <p>Cavities kept open by accumulations of magmatic gases and vapors</p> Signup and view all the answers

    What are minerals by definition?

    <p>'Crystalline' solids</p> Signup and view all the answers

    Where do most well-developed mineral crystals occur?

    <p>'Walls of open spaces in rocks'</p> Signup and view all the answers

    'Crystalline solids that do not exhibit crystal faces' are:

    <p>'Amorphous minerals'</p> Signup and view all the answers

    What is defined as a homogeneous solid bounded by naturally formed plane faces related to a regular internal arrangement of atoms?

    <p>Crystal</p> Signup and view all the answers

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