Texas Tech UniversityGEOL 1403Lab Exercise: Minerals: GEOL-1403.295: Lab: Physical Geology

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Lab Exercise: Minerals Due Feb 1 at 11:59pm Points 26 Questions 17 Time Limit None Allowed Attempts 2 Instructions Attempt History Attempt Time Score LATEST Attempt 1 102 minutes 20.78 out of 26... ! Correct answers are hidden. Score for this attempt: 20.78 out of 26 Submitted Feb 1 at 2:34pm This attempt took 102 minutes. This exercise covers minerals and mineral properties. You will need to use the information contained in chapters 1 and 2 of the laboratory manual to complete this laboratory exercise. This exercise does not have a time limit. You may only submit this exercise 2 times. Your highest grade will be recorded. Take the Quiz Again Question 1 1 / 1 pts Definition of a mineral. Geologists define a mineral as any naturally occurring, inorganic solid, with an orderly crystalline structure and a definite chemical composition. 1. Naturally occurring. Minerals form through natural geologic processes. A mineral cannot be a manmade substance. A synthetic diamond or emerald is not considered a true mineral because it is not Lab Exercise: Minerals: GEOL-1403.295: Lab: Physical Geology https://collin.instructure.com/courses/869627/quizzes/1914005 1 of 23 2/1/21, 2:36 PMnaturally occurring. 2. Inorganic. An organic substance is a compound composed mostly of oxygen, carbon and hydrogen where carbon atoms bond directly with hydrogen atoms. Simple sugar, carbohydrate and fat (Figure 1) are examples of organic substances. To be classified as a mineral, a substance must be inorganic. 3. Solid. Minerals are solid substances, not liquid or gas. 4. Crystalline. The atoms that make up a mineral are arranged in an orderly, repetitive manner. This orderly structure of atoms is reflected in the regularly shaped objects called crystals. 5. Definite chemical composition. The composition of a mineral can be expressed as a chemical formula that allows for some variation. A chemical formula provides definite proportions of certain atoms. For example, The chemical formula of quartz is expresses as SiO2 which indicates that quartz consists of silicon (Si) and oxygen (O) atoms, in a proportion of one-to-two. Select all the characteristics below that make up the definition of a mineral. possess a definite crystalline form inorganic material possess a definite chemical composition must be natural (not created by humans) must be a solid material Lab Exercise: Minerals: GEOL-1403.295: Lab: Physical Geology https://collin.instructure.com/courses/869627/quizzes/1914005 2 of 23 2/1/21, 2:36 PMQuestion 2 1 / 1 pts ____________ may become trapped within the crystalline structure of a mineral, causing slight changes to mineral properties (such as color). Impurities Question 3 1 / 1 pts Is petroleum (pictured below) a mineral? Select the properties of petroleum that match the properties of minerals. A mineral must meet all the criteria. You may need to look up the material online if you are not familiar with its properties. Lab Exercise: Minerals: GEOL-1403.295: Lab: Physical Geology https://collin.instructure.com/courses/869627/quizzes/1914005 3 of 23 2/1/21, 2:36 PMNaturally occurring Partial Partial Question 4 0.5 / 1 pts Are glass bottles (pictured below) a mineral? Select the properties of glass bottles that match the properties of minerals. A mineral must meet all the criteria. You may need to look up the material online if you are not familiar with its properties [Show More]

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