< BackNext >PreviewMain Minerals of the Earth’s Crust Chapter 3 Preview CRCT Preparation.

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< BackNext >PreviewMain Minerals of the Earth’s Crust Chapter 3 Preview CRCT Preparation

< BackNext >PreviewMain Chapter 3 CRCT Preparation 1. Which of the following definitions best describes a mineral? A a substance that cannot be separated or broken down into simpler substances by chemical means B a substance made up of atoms of two or more different elements joined by chemical bonds C a naturally formed, inorganic solid that has a definite crystalline structure D a solid whose atoms, ions, or molecules are arranged in a definite pattern

< BackNext >PreviewMain Chapter 3 CRCT Preparation 1. Which of the following definitions best describes a mineral? A a substance that cannot be separated or broken down into simpler substances by chemical means B a substance made up of atoms of two or more different elements joined by chemical bonds C a naturally formed, inorganic solid that has a definite crystalline structure D a solid whose atoms, ions, or molecules are arranged in a definite pattern

< BackNext >PreviewMain Chapter 3 CRCT Preparation 2. Which of the following substances is a mineral? A coal, which forms from the remains of living things B fluorite, which is a crystalline solid with the chemical formula CaF 2 C obsidian, which is a volcanic glass and is not crystalline D brass, which is a metal that is made by humans

< BackNext >PreviewMain Chapter 3 CRCT Preparation 2. Which of the following substances is a mineral? A coal, which forms from the remains of living things B fluorite, which is a crystalline solid with the chemical formula CaF 2 C obsidian, which is a volcanic glass and is not crystalline D brass, which is a metal that is made by humans

< BackNext >PreviewMain Chapter 3 CRCT Preparation 3. Minerals that contain one of more elements combined with silicon and oxygen are called A sulfides. B silicates. C oxides. D halides.

< BackNext >PreviewMain Chapter 3 CRCT Preparation 3. Minerals that contain one of more elements combined with silicon and oxygen are called A sulfides. B silicates. C oxides. D halides.

< BackNext >PreviewMain Chapter 3 CRCT Preparation Use the table to answer question On the Mohs hardness scale, which of the following minerals is harder than topaz? A apatite B talc C corundum D quartz

< BackNext >PreviewMain Chapter 3 CRCT Preparation Use the table to answer question On the Mohs hardness scale, which of the following minerals is harder than topaz? A apatite B talc C corundum D quartz

< BackNext >PreviewMain Chapter 3 CRCT Preparation 5. Which of the following is a nonsilicate mineral? A orthoclase, KAlSi 3 O 8 B talc, Mg 3 Si 4 O 10 (OH) 2 C almandine, Fe 3 Al 2 (SiO 4 ) 3 D magnetite, Fe 3 O 4

< BackNext >PreviewMain Chapter 3 CRCT Preparation 5. Which of the following is a nonsilicate mineral? A orthoclase, KAlSi 3 O 8 B talc, Mg 3 Si 4 O 10 (OH) 2 C almandine, Fe 3 Al 2 (SiO 4 ) 3 D magnetite, Fe 3 O 4

< BackNext >PreviewMain Chapter 3 CRCT Preparation 6. Which of the following is NOT a way to reduce the impact of mining? A recycling products that are made from minerals B reducing the use of minerals to make products C reclaiming land that has been disturbed by mining D inventing new things to make out of minerals

< BackNext >PreviewMain Chapter 3 CRCT Preparation 6. Which of the following is NOT a way to reduce the impact of mining? A recycling products that are made from minerals B reducing the use of minerals to make products C reclaiming land that has been disturbed by mining D inventing new things to make out of minerals

< BackNext >PreviewMain Chapter 3 CRCT Preparation 7. Which of the following minerals can be identified by taste? A magnetite B fluorite C calcite D halite

< BackNext >PreviewMain Chapter 3 CRCT Preparation 7. Which of the following minerals can be identified by taste? A magnetite B fluorite C calcite D halite

< BackNext >PreviewMain Chapter 3 CRCT Preparation 8. Minerals such as gypsum and halite form A from hot water solutions. B when a rock is altered by metamorphism. C when bodies of salt water evaporate. D from the cooling of magma that rises upward through the crust.

< BackNext >PreviewMain Chapter 3 CRCT Preparation 8. Minerals such as gypsum and halite form A from hot water solutions. B when a rock is altered by metamorphism. C when bodies of salt water evaporate. D from the cooling of magma that rises upward through the crust.

< BackNext >PreviewMain Chapter 3 CRCT Preparation 9. Why are gemstones valuable? A They can be used in concrete and to build buildings. B They are good conductors of heat and electricity. C They are beautiful and rare. D They taste good.

< BackNext >PreviewMain Chapter 3 CRCT Preparation 9. Why are gemstones valuable? A They can be used in concrete and to build buildings. B They are good conductors of heat and electricity. C They are beautiful and rare. D They taste good.

< BackNext >PreviewMain Chapter 3 CRCT Preparation Use the table to answer Question Which of the following terms correctly completes the entry in the table? A sulfate B oxide C carbonate D halide

< BackNext >PreviewMain Chapter 3 CRCT Preparation Use the table to answer Question Which of the following terms correctly completes the entry in the table? A sulfate B oxide C carbonate D halide

< BackNext >PreviewMain Chapter 3 CRCT Preparation 11. What is the difference between an element, a mineral, and a rock?

< BackNext >PreviewMain Chapter 3 CRCT Preparation 11. Answer - Full-credit answers should include the following points: Elements are pure substances that cannot be broken down into smaller substances by ordinary chemical means. Some elements, such as gold, aluminum, or iron, can be minerals because they are solid, crystalline, and naturally formed by inorganic processes. All minerals are made of one or more elements. Rocks are made of one or more minerals.

< BackNext >PreviewMain Chapter 3 CRCT Preparation 12. A chemical analysis of a mineral sample shows its chemical composition as SiO 2. In what group of minerals does this sample belong? How do you know?

< BackNext >PreviewMain Chapter 3 CRCT Preparation 12. Answer - Full-credit answers should include the following points: The sample is a silicate mineral. The sample is made of silicon and oxygen, which are found in all silicate minerals. Non-silicate minerals do not contain combinations of silicon and oxygen.