Minerals
Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks
Rock Cycle
100
If diamond and coal are both made out of pure carbon, why do they have such different physical properties?
The IAOA is different
100
What two geologic processes have to occur in order to form an igneous rock?
Melting and Solidification
100
What is the size range for sediments that create sandstone
0.006cm to 0.2cm
100
What is the composition of marble
Calcite and/or dolomite
100
True or False
Sediment must be compacted and cemented before it can become a sedimentary rock
True
200
Which two minerals are commercial sources of iron?
Hematite and Magnetite
200
What kind of texture best describes an igneous rock that formed deep underground?
Coarse or very coarse
200
Which element is always found in bioclastic sedimentary rocks?
Carbon
200
What type of rock would you be examining if you saw a type of foliation called banding
Gneiss
200
Which type or types of rock can be the source of sediments
All 3 , Igneous, metamorphic, and sedimentary
300
The minerals talc, muscovite mica, quartz, and olivine are similar because they
contain silicon and oxygen
300
What type of color and density do Mafic rocks have in common?
Color = Darker
Density = Higher
300
Where is the most likely location for large deposits of rock gypsum and rock salt to be found?
Ocean water, shallow seas
300
What is the next level of metamorphism of a slate rock
Phyllite
300
What type of rock can an igneous rock become
All 3, Sedimentary, metamorphic and itself (another igneous)
400
The element silicon (Si) is used in the production of cell phones. Which mineral could be a possible source of this silicon?
Choices: Quartz, Calcite, Halite, Galena
Quartz
400
Which intrusive igneous rock could be composed of approximately 60% pyroxene, 25% plagioclase feldspar, 10% olivine, and 5% amphibole?
Gabbro
400
Describe the processes that have to occur to form an evaporite rock (such as Dolostone)
Water must be rich with minerals
When water EVAPORATES, the minerals are left behind and compacted. The compacted minerals form an evaporite sedimentary rock
400
What is the main difference between metamorphic rocks and most other rocks
Foliation, banding, mineral alignment, distortion of structure
400
Describe how temperature and pressure must change for a limestone to become a marble. Also, what is the single word term to describe these changes.
Increase in temperature and pressure
Metamorphism
500
Which mineral is produced when two atoms of iron chemically combine with three atoms of oxygen?
Hematite
500
Which igneous rock, when weathered, could produce sediment that contains Pyroxene and Olivine?
Peridotite
500
Describe one observable characteristic of rock A that indicates that rock is sedimentary? 
Horizontal layer
500
What physical property of metamorphic rocks tend to increase as the rocks become more metamorphosed
Density
500
What is the main difference between crystalline, compacted, and cemented sedimentary rocks? Must name all 3 differences
Crystalline- Precipitate/Evaporite
Compacted - Little pressure from overlying layers
Cemented - Natural glue holds it together