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15
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What is the Mantra for Igneous Rocks?
Intergrown crystals in a RANDOM pattern
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15
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Name an igneous rock with a very coarse texture.
Pegmatite
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15
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What is a possible crystal size in a Diorite igneous rock?
from 1 mm - 10 mm
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15
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If the texture of an igneous rock is GLASSY, what does that mean?
Non-crystalline or No crystals
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15
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Name an intrusive igneous rock with a coarse texture that is composed only of olivine.
Dunite
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boom
Lose 50 points!
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fairy
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25
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fairy
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banana
Go to last place!
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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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MAFIC igneous rocks are rich in what 2 ELEMENTS?
Iron and Magnesium
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15
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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 2 minerals that make up Granite.
K feldspar, Quartz, Plagioclase feldspar, Biotite, Amphibole
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15
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What are the 2 processes that form Igneous rocks?
Melting & Solidification
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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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thief
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star
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rocket
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thief
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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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If a rock cooled below Earth's surface, its Environment of Formation is known as ________.
Intrusive or Plutonic
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heart
Other team wins 10 points!
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shark
Other team loses 20 points!
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shark
Other team loses 20 points!
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baam
Lose 25 points!
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