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23 Cards in this Set
- Front
- Back
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What is a silicate?
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Minerals containing silicon, oxygen, and one or more other elements.
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What is a mineral?
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A naturally occurring, inorganic, crystalline solid.
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What is streak?
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A property of a mineral that shows the color of its powder when rubbed on unglazed porcelain tile.
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What is luster?
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The property of a mineral that shows how it reflects light?
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What is cleavage?
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The property that causes a mineral to break in smooth, flat pieces.
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What is fracture?
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The property that causes a mineral to break in rough edges.
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What does the Mohs scale measure?
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Hardness
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What are gems?
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Valuable, rare minerals often used in jewelry.
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What are ores?
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Minerals mined for a profit.
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What is magma?
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Hot, melted rock that forms minerals when cooled.
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What is one of the softest minerals?
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graphite
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What is the hardest mineral?
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diamond
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What does "crystal structure" refer to?
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The repeating patterns in which atoms are arranged.
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What forms when magma cools?
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Some minerals
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What forms from dissolved minerals in liquids?
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Some crystals
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What helps identify minerals?
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Tests for hardness and streak.
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All minerals are ___________________.
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inorganic
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A crystal is always _________________.
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A solid
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How can you tell gold and pyrite apart?
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Hardness and streak.
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What are two ways in which minerals form?
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Solutions evaporate and magma cools.
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How does the time it takes for a crystal to form affect the crystal size?
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slow-big crystals
fast-small crystals |
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Eight properties that help identify minerals.
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streak, luster, hardness, density, appearance, magnetic, cleavage, fracture
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Be able to list three properties that help identify minerals and describe what each property is.
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