55
Mineral Properties
Rock Cycle
Sedimentary
RocksIgneous
RocksMetamorphic
Rocks
100 100 100 100 100200 200 200 200 200300 300 300 300 300400 400 400 400 400500 500 500 500 500
What is a “mineral streak?”
100
Streak = color of the powdered form.
Or…
Streak = color of mineral dust.
100
What mineral property does the Mohs scale
describe?
200
Mohs Scale = Relative Hardness
200
Give an example of a hardness value for a
mineral that scratches a knife blade (5.1) but leaves a streak on a streak plate
(6.5)
300
(5.1) < Mineral < (6.5)
Knife < Mineral < Streak Plate
300
What does the nucleus of an atom include?
400
Nucleus includes P+ and No
400
What are the four processes of mineral
formation?
500
1.Crystallization2.Precipitation
3.Changes (in temp & pressure)
4.Hydrothermal Solutions
5.“crazy people chase hippos”
500
100
What is a rock?
A rock is a natural, solid mass of more than one
mineral.
100
How are rocks classified?
200
Rocks are classified by how they were
formed.
200
Which type of rock process is powered by energy from the sun?
300
Formation of sedimentary rocks.
Wind, pressure, water cycle…
300
A rock that was formed very slowly will have
______ crystals.
400
Slow = Large Crystals
400
How are weathering, sediment, erosion, and
deposition related?
500
Rocks are weathered, turn into sediment, which is eroded (moved), and deposited somewhere else.
500
Define “weathering”
200
Weathering =breaking rocks into
sediment.
200
“Cementation” is the process in which
sediment becomes _______ together.
300
Cementation:
“Cemented”
“Stuck”
“Glued”300
Describe a “biochemical”
sedimentary rock.
400
Biochemical Sedimentary rocks are
made of “smushed” dead organisms.
400
Describe “clastic” sedimentary rocks.
Daily Double!
1000
“clastic” sedimentary rocks
Pebbles and sand that are compacted and cemented together.
1000
100
How are igneous rocks formed?
100
Cooling magma or lava.
200
What type of igneous rock is formed from
cooling lava?
200
Intrusive Igneous rocks.
Why do porphyritic rocks have different
crystal sizes?
600
Daily Double!
Some crystals form fast and others form slow.
600
What is the difference between Constructive & Deconstructive forces?
400
Constructive = + add Earth
Deconstructive = - subtract Earth
400
Give three examples of renewable resources.
500
Answers will vary.
1. Paper2. Apples3. Cotton
Replenish supply quickly500
If a metamorphic rock melts and then cools it will become a ______
rock.100
Igneous rock.
100
Metamorphic rocks are formed from
sedimentary rocks that have been exposed to extreme ______ and
______.200
Heat
Pressure
200
What are the 2 types of metamorphism?
300
Contact metamorphism
Regional metamorphism
300
Nonfoliated metamorphic rocks do
not have _______.
500
Nonfoliated do not have bands, stripes, or layers.
500
Name five mineral properties that we have discussed in
class.
1. Color2. Streak3. Density4. Relative Hardness5. Luster6. Texture
What is “sediment?"
100
Sediment = broken pieces of rocks
100
Heat from nearby Magma.
400
Where does the heat from contact metamorphism come from?
400
