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21 Cards in this Set
- Front
- Back
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What is a mineral |
Solid that had a crystal structure and definite chemical composition |
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All mineral must be able to form by the |
Organic processes |
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How are minerals identified |
By their color streak luster hardness density crystal structure cleavage and fractures |
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How do Minerals form |
Form by organic processes Crystallizations from minerals dissolved in solutions Crystallizations as magma and lava cools |
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How do geologists classify rocks |
Composition Color and Texture |
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Igneous rocks form from |
Cooling of magma |
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sedimentary Rock form |
Small particles of rocks or remains of animals and plants |
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Metamorphic forms from |
Changes in heat and pressure and chemical reactions |
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Igneous rocks are classified by their |
Origin texture and composition |
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2 types of igneous rocks |
Extrusive and intrusive |
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Definition of the two igneous rocks |
Extrusive - forms from a erupted lava Intrusive -forms from hardened beneath earths surface |
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Igneous rocks are used for |
Building materials |
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How will geologist classify a sample of granite |
By their size and color |
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How does sedimentary form |
By weathering erosion , deposition , compaction , and cementation |
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3 main groups of sedimentary |
Clastic Chemical Organic |
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Definitions of 3 groups of sedimentary |
Clastic -formed from squeezed together rock fragments Organic - formed from the remains of animals and plants Chemical - minerals dissolving in water or solutions |
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These sedimentary rocks are used for |
Tools and building materials |
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Metamorphic rocks are |
Rocks that form by heat and pressure or chemical reactions |
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Geologists classify metamorphic rocks by them according to |
Grain arrangement |
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Rock cycle |
A series of processes that occurs in Earth’s surface and for the crust and mantle that slowly changed rocks from one kind to another one |
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Marble is important for |
Building and sculptures |
