Personality Theories Cultural Factors

Chapter 6 Minerals and RocksMarch 19, 2008

1. A mineral is any course make, solid chemical element or chemical intensify having a definite composition and a characteristic quartz structure. The study of minerals ar important because of the following reasons: rocks and minerals are grammatical construction blocks of the Earth, rocks and minerals are important resources, and minerals affect some(prenominal) human activities and running(a) of natural Earth systems.

2. There are thousands of different minerals. Silicates are the most common minerals.

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4. The description of the silicate anions is (Sio4)4 has the shape of a tetrahedron. The four-spot relatively large oxygen anions surround and bond to the little silicon cation.

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7. There are several non silicate minerals :
Hematite--ore of iron
Gypsum--make plaster
Halite--table salt
Calcite-- use to make cement
Pyrite--gold
Sulfur--drugs and chemicals

8. Yes, a rock can be defined by two features: The first feature is the texture in which the overall appearance of that rock has because of size, shape, and arrangement of its constituent mineral grains. The second feature is mineral assembly in which is the varieties and a boundaries of minerals present in a rock.

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Sedimentary rocks are formed either by chemical precipitation of material carried in solution in the sea, lake, or river water or by deposition of mineral particles transported in suspension by water, wind, or ice. The two ways sediment becomes sedimentary rocks are by the Deposition of a cement and Recrystallization.

10. Igneous and metamorphic both contain intricately interlocked mineral grains.

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12. The maximum mass of chemical weathering process of rocks occurs in the tropical regions. An increase in temperature increases the specialty of carbonic acid and oxygen in humid climates where the intensity of the chemical weathering processes increases on account of the higher temperature.

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