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15
×
Name an intrusive igneous rock with a coarse texture that is composed only of olivine.
Dunite
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15
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What is the difference between LAVA and MAGMA?
Lava - at or near surface & Magma - below surface
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15
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What is the texture of Andesite?
Fine
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banana
Go to last place!
Oops!
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magnet
Take 5 points!
Okay!
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gift
Win 15 points!
Okay!
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lifesaver
Give 20 points!
Oops!
15
×
Name a mineral that could be in a basalt rock.
Plagioclase feldspar, Pyroxene, Amphibole, Olivine, Biotite
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15
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Name an igneous rock with a very coarse texture.
Pegmatite
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banana
Go to last place!
Oops!
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magnet
Take 25 points!
Okay!
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fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 20 points!
Oops!
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banana
Go to last place!
Oops!
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star
Double points!
Okay!
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shark
Other team loses 25 points!
Okay!
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baam
Lose 10 points!
Oops!
15
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True or False: Felsic ingeous rocks are light in color.
True
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15
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What does VESICULAR texture mean?
Gas pockets
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15
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Name an extrusive igneous rock with a glassy texture.
Obsidian or Pumice or Basaltic glass or Scoria
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seesaw
Swap points!
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seesaw
Swap points!
Okay!
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fairy
Take points!
5
10
15
20
25
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lifesaver
Give 25 points!
Oops!
15
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What is the crystal size of a FINE texture igneous rock?
Less than 1 mm
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15
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FELSIC igneous rocks are rich in what 2 ELEMENTS?
Silicon and Aluminum
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15
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Name an intrusive igneous rock with coarse texture.
Granite or Diorite or Gabbro or Peridotite or Dunite
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15
×
True or False: Mafic igneous rocks have a high density.
True
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×
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