Exam 2: Minerals: The Building Blocks of Rocks

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In ionic compounds, ________ have lost one or more electrons to acquire positive charge and a smaller radius than their neutral atom, while ________ have gained one or more electrons to acquire a negative charge and a larger radius than their neutral atom.

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Small, parallel grooves (twinning striations)are visible on cleavage surfaces and characteristic of which mineral?

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Which of the following minerals is a ferromagnesian silicate?

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The external expression of internal atomic arrangement in a mineral is called its crystal habit.

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Calcite and dolomite are both carbonate minerals.

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Minerals like diamond and graphite exist because of ________.

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Aluminum ions have what charge in most rock-forming minerals?

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Ferromagnesian silicate minerals contain some magnesium and/or iron.

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Which one of the following minerals has the greatest hardness on the Mohs hardness scale?

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What are the lightest or least massive of the basic atomic particles?

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Which of the following is not a fundamental particle found in atoms?

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Which minerals that make up the Mohs scale are softer than your fingernail?

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When treated with hydrochloric acid, powdered carbonate minerals release bubbles as a fizz of odorless carbon dioxide.

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Which of the following minerals is in the mineral group known as mica?

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Rock-forming silicate minerals have higher specific gravities than water.

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Which of the following best characterizes ferromagnesian silicates?

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The main use for most diamond, corundum and garnet is ________.

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Plagioclase feldspars contain significant, variable percentages of which elements?

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Which group of minerals are the most abundant in the Earth's crust?

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Rocks are aggregates of one or more what?

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