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What is a possible crystal size in a Diorite igneous rock?
from 1 mm - 10 mm
What is the texture of Andesite?
Fine
Name an intrusive igneous rock with a coarse texture that is composed only of olivine.
Dunite
Name a mineral that could be in a basalt rock.
Plagioclase feldspar, Pyroxene, Amphibole, Olivine, Biotite
True or False: Felsic ingeous rocks are light in color.
True
True or False: Mafic igneous rocks have a high density.
True
Name 2 minerals that make up Granite.
K feldspar, Quartz, Plagioclase feldspar, Biotite, Amphibole
MAFIC igneous rocks are rich in what 2 ELEMENTS?
Iron and Magnesium
FELSIC igneous rocks are rich in what 2 ELEMENTS?
Silicon and Aluminum
Name an intrusive igneous rock with coarse texture.
Granite or Diorite or Gabbro or Peridotite or Dunite
Name an igneous rock with a very coarse texture.
Pegmatite
Name an extrusive igneous rock with a glassy texture.
Obsidian or Pumice or Basaltic glass or Scoria
What is the crystal size of a FINE texture igneous rock?
Less than 1 mm
What are the 2 products that form Igneous rocks? (see the oval on your ESRT)
Magma & Lava
If the texture of an igneous rock is GLASSY, what does that mean?
Non-crystalline or No crystals
What is the Mantra for Igneous Rocks?
Intergrown crystals in a RANDOM pattern
What does VESICULAR texture mean?
Gas pockets
If a rock cooled below Earth's surface, its Environment of Formation is known as ________.
Intrusive or Plutonic
If a rock cooled on Earth's surface, its Environment of Formation is known as _______.
Extrusive or Volcanic
What are the 2 processes that form Igneous rocks?
Melting & Solidification
What is the difference between LAVA and MAGMA?
Lava - at or near surface & Magma - below surface


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