Ch 2 Minerals Sect. 2 Minerals & Section 3 Properties Of Minerals

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Ch 2 Minerals  Sect. 2 Minerals & Section 3 Properties Of Minerals - Quiz

This Quiz will cover Ch 2 Section 2 Minerals. Good Luck!


Questions and Answers
  • 1. 

    Which of the following is NOT a characteristic of minerals?

    • A.

      Crystalline structure

    • B.

      Formed by inorganic processes

    • C.

      Definite chemical composition

    • D.

      Either liquid or solid

    Correct Answer
    D. Either liquid or solid
    Explanation
    The correct answer is "either liquid or solid". This is because minerals are naturally occurring substances that have a crystalline structure, are formed by inorganic processes, and have a definite chemical composition. However, minerals cannot be in a liquid state, as liquids do not have a fixed crystalline structure.

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  • 2. 

    The Mohs scale measures

    • A.

      Density of a mineral

    • B.

      A mineral

    • C.

      The luster of a mineral

    • D.

      A mineral's type of crystalline structure

    Correct Answer
    B. A mineral
    Explanation
    The Mohs scale measures the hardness of a mineral. The scale was developed by Friedrich Mohs in 1812 and ranks minerals from 1 to 10 based on their ability to scratch each other. A mineral's hardness is determined by the strength of its atomic bonds, and the scale is used by geologists and mineralogists to identify and classify minerals based on their hardness.

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  • 3. 

    Diamond is

    • A.

      The hardest mineral on the Mohs scale

    • B.

      A nonmetallic element

    • C.

      The only mineral with luster

    • D.

      An iosotope of silicone

    Correct Answer
    A. The hardest mineral on the Mohs scale
    Explanation
    Diamond is the hardest mineral on the Mohs scale because it has a unique crystal structure that allows it to withstand scratching and abrasion. It is composed of carbon atoms arranged in a strong and rigid lattice structure, which gives it its exceptional hardness. The Mohs scale is a measurement of mineral hardness, with diamond at the top with a rating of 10. This means that diamond can scratch all other minerals, making it the hardest substance known.

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  • 4. 

    Gold, silver and copper are examples of:

    • A.

      Carbonate minerals

    • B.

      Native elements

    • C.

      Fluorescent minerals

    • D.

      Minerals that have a distinct smell

    Correct Answer
    B. Native elements
    Explanation
    Gold, silver, and copper are examples of native elements. Native elements are minerals that occur naturally in their pure form, without combining with other elements. These minerals are composed of only one type of atom, which gives them their distinct properties and characteristics. Gold, silver, and copper are all known for their lustrous appearance, malleability, and conductivity, making them valuable and useful in various industries.

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  • 5. 

    If a mineral breaks along flat or even surfaces, it has

    • A.

      Luster

    • B.

      Fracture

    • C.

      Cleavage

    • D.

      Streak

    Correct Answer
    C. Cleavage
    Explanation
    If a mineral breaks along flat or even surfaces, it has cleavage. Cleavage is a property of minerals that describes how a mineral breaks when subjected to stress. Minerals with cleavage break along specific planes of weakness, resulting in flat or even surfaces. This is different from fracture, which describes how a mineral breaks irregularly and does not produce flat or even surfaces. Luster refers to the appearance of a mineral's surface in reflected light, and streak refers to the color of a mineral's powder when it is scraped across a rough surface.

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  • 6. 

    You can identify a mineral by only using one property. 

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Minerals can have multiple properties such as color, hardness, luster, cleavage, and specific gravity. Therefore, it is not possible to identify a mineral accurately by only using one property.

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  • 7. 

    Where are most minerals found?

    • A.

      Earth

    • B.

      Earth

    • C.

      In outer space

    • D.

      Earth's crust

    Correct Answer
    D. Earth's crust
    Explanation
    Most minerals are found in Earth's crust. The crust is the outermost layer of the Earth and is composed of various types of rocks and minerals. These minerals are formed through geological processes over millions of years. They can be found in different types of rocks, such as igneous, sedimentary, and metamorphic rocks. The crust is the most accessible part of the Earth for mining and extraction of minerals, which are essential for various industrial and technological purposes.

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  • 8. 

    All silicate minerals contain which two elements?

    • A.

      Silicon and oxygen

    • B.

      Oxygen and carbon

    • C.

      Iron and silicon

    • D.

      Silicon and sodium

    Correct Answer
    A. Silicon and oxygen
    Explanation
    Silicate minerals are a group of minerals that contain silicon and oxygen as their primary elements. Silicon is a key component of these minerals, providing their structure, while oxygen is the most abundant element in the Earth's crust and is commonly found in combination with silicon. Therefore, the correct answer is silicon and oxygen.

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  • 9. 

    What mineral is the hardest known substance in nature?

    • A.

      Muscovite

    • B.

      Native gold

    • C.

      Diamond

    • D.

      Silicate

    Correct Answer
    C. Diamond
    Explanation
    Diamond is the hardest known substance in nature because of its unique atomic structure. Each carbon atom in a diamond is bonded to four other carbon atoms in a tetrahedral arrangement, creating a strong and rigid lattice structure. This arrangement gives diamond its exceptional hardness, allowing it to scratch and cut through other materials. Muscovite, native gold, and silicate are not as hard as diamond and do not possess the same level of durability and resistance to scratching.

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  • 10. 

     A silicate tetrahedron is surrounded by ________.

    • A.

      4 oxygen atoms

    • B.

      6 sodium atoms

    • C.

      6 oxygen atoms

    • D.

      4 sodium atoms

    Correct Answer
    A. 4 oxygen atoms
    Explanation
    A silicate tetrahedron is a structure composed of one silicon atom surrounded by four oxygen atoms. This arrangement forms a tetrahedron shape, with each oxygen atom positioned at one of the corners. Therefore, the correct answer is 4 oxygen atoms.

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  • 11. 

    Name this mineral.  There are paperclips attached to it do to its magnetic properties

    Correct Answer
    magnetite
    Explanation
    Magnetite is a mineral that exhibits strong magnetic properties. It is composed of iron oxide and is naturally magnetic. The presence of paperclips attached to it further confirms its magnetic nature. Magnetite is commonly used in various applications such as in compasses and as a catalyst in industrial processes.

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  • 12. 

    Name this mineral.  It cleaves paper thin.

    Correct Answer
    muscovite mica
    Explanation
    Muscovite mica is the correct answer because it is a mineral that cleaves paper thin. Muscovite mica is a type of mica mineral that has a perfect basal cleavage, which means it can be easily split into thin sheets or flakes. This characteristic makes it useful in various applications, such as in electrical insulators, heat shields, and as a filler in cosmetics.

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  • 13. 

    Does this mineral cleave or fracture?

    Correct Answer
    facture
  • 14. 

    Does this mineral cleave or fracture?

    Correct Answer
    fracture
    Explanation
    Fracture refers to the way a mineral breaks when it is not along a cleavage plane. Instead of breaking along smooth, flat surfaces, a mineral that fractures will break irregularly and create rough or jagged edges. This can occur due to the absence of cleavage planes or the presence of impurities or structural weaknesses in the mineral. Therefore, the given answer "fracture" suggests that the mineral in question does not have cleavage and breaks in an irregular manner.

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  • Mar 20, 2023
    Quiz Edited by
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  • Jul 05, 2011
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