WS crystal system problem SCANTRON

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Niagara County Community College *

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101

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Geology

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Oct 30, 2023

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NAME: DATE: CLASS: Test Chapter 4 section 4.1 Transparency Worksheet 9 Earth Science: Geology, the Environment, and the Universe Crystal Systems Worksheet
NAME: DATE: CLASS: Test Chapter 4 section 4.1 Transparency Worksheet 9 Earth Science: Geology, the Environment, and the Universe 1. What does the property of mineral hardness measure? a. Hardness measures how easily a mineral can reflect light b. Hardness measures how easily a mineral’s breakage occurs c. Hardness measures how easily a mineral can be scratched d. Hardness measures how easily a mineral can leave a mark onto a porcelain tile 2. What is the softest mineral shown on the table on the other side? a. Talc b. Feldspar c. Quartz d. Diamond 3. From the previous question what is its hardness on the Mohs scale of such a sample? a. hardness of 1 b. hardness of 4 c. hardness of 5 d. hardness of 10 4. What is the hardest mineral shown from the illustration on the other side? a. Talc b. Feldspar c. Quartz d. Diamond 5. From the previous question what is its hardness on the Mohs scale of such a sample? a. hardness of 1 b. hardness of 4 c. hardness of 7 d. hardness of 10 6. Explain how you could estimate the hardness of a mineral that does not appear on the Mohs scale. a. By comparing a known sample to the unknown sample b. By comparing an unknown sample to the unknown sample c. By comparing a known sample to the known sample 7. Which common object will scratch feldspar? a. An iron nail b. A glass c. A steel file d. A streak plate 8. From the choices listed below, which mineral on the Mohs scale will scratch apatite? a. Calcite b. Quartz c. Talc d. Fluorite 9. From the choices listed below, which mineral will apatite scratch? a. Quartz b. Calcite c. Diamond d. Feldspar 10. What is the hardness of a mineral that scratches gypsum but cannot scratch calcite? a. Hardness number that is below 2.0 b. Hardness number that is between 2.1 & 2.9 c. Hardness number that is above 3.0
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