test topics: meet in computer lab. minerals (five characteristics) tests geologists use to identify...
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Test topics: Meet in computer lab.
• minerals (five characteristics)• tests geologists use to identify a mineral• use of a mineral guide to identify a mineral• rocks; how do they differ from minerals• rock types• general formation of each of the three types• processes that construct or destruct rock• sub-groups of each of the three types• rock cycle• identification of rock samples (group and sub-group only; knowing name of rock is extra credit – Do NOT put your focus there!)
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Rock Type Review
All Rocks
sedimentaryigneous metamorphic
intrusive extrusive clastic organic non-foliatedfoliatedchemical
remains of plant
or animal
Bits of sediment
compacted (or
cemented ) together
Cooled lava; small or not visible mineral grains; some have no minerals at all and are called glass
Cooled magma in crust; large visible mineral grains
No visible
layers or bands
Heat and
pressure cause
minerals to line
up in visible
layers or bands
minerals precipitated
out of a solution
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Rock Cycle
Every rock type can become every other rock type eventually
because the earth’s
constructive and destructive
processes repeat
themselves
continuously.
Heat and pressure