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7 Cards in this Set
- Front
- Back
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Which statement is true for all minerals?
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They have a crystalline structure.
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If a scientist creates a new rock-like substance in a laboratory, why wouldn’t this type of material be classified as a true mineral?
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It’s not a naturally occurring substance.
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What action leads to crystal formation in minerals?
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The atoms or molecules form repeating patterns.
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Which statement is an accurate description of the relationship of rocks and minerals?
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Knowing which minerals are in a rock can help you identify and classify that rock.
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Glassy and metallic are terms that describe what mineral property?
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luster
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Using gabbro as an example, explain what makes gabbro a rock and not a mineral.
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Gabbro is made of several minerals, including feldspars, pyroxene, and olivine. Every gabbro
rock looks different because the chemical composition and structure varies with each sample. |
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List the observable properties that scientists use to identify minerals. Explain why chemical properties are not always used to identify minerals.
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Observable properties are: color and streak, luster, cleavage and fracture (crystalline
structure), and hardness. Testing the chemical properties of a mineral might damage the mineral sample. Also, these tests can be complex and may require expensive equipment. |
