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Rock and Minerals
Flash Cards
12
Science
9th Grade
09/16/2009

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Cards

Term
Sedimentary
Definition
rock formed from pieces of other rocks that are pressed together
Term
Igneous
Definition
rock formed by the crystallization of hot melted rock or minerals
Term
Metamorphic
Definition
rock formed when existing rocks are changed by heat and pressure
Term
Intrusive
Definition
solid rock inside the earth
Term
Clastic
Definition
sedimentary rock made up of fragments of rocks
Term
 Nonclastic
Definition
sedimentary rock made up of dissolved minerals or the remains of living things
Term
Foliated
Definition
texture of a metamorphic rock that has mineral crystals arranged in bands
Term
Streak
Definition
color of the powder left by a mineral
Term
Luster
Definition
how a mineral's surface reflects light
Term
Cleavage
Definition
tendency of some minerals to split along smooth, flat surfaces called planes
Term
Fracture
Definition
tendency of someminerals to break into pieces with uneven surfaces
Term
Hardness
Definition
property of a mineral that relates to how much the mineral resists being scratched
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