Rock
A rock formed from the compaction of sediments.
Sedimentary Rock
The measure of how easily a mineral can be scratched.
Hardness
Name 2 characteristics that a mineral can have?
Soft, Hard, Malleable, Conductive, Dense
3 things that Quartz is used for.
Watches, clocks, radios, glass.
How is an igneous rock formed?
Cooled molten rock.
A rock formed from the cooling and hardening of molten rock.
Igneous Rock
The color that a mineral leaves behind when rubbed against a hard surface.
Streak
Name 2 characteristics that a mineral can have.
Soft, Hard, Malleable, Conductive, Dense
3 things that fluorite is used for.
Steel, glass, fiberglass, pottery.
What type of rock is probably found near a volcanic mountain?
A rock formed when existing rock is altered by conditions of extreme pressure and temperature.
Metamorphic Rock
The way that the surface of a mineral reflects light.
Luster
Why are diamonds so strong?
Each carbon atom is bound to 4 other carbon atoms in a stable structure.
A mineral can be scratched by a 6 but can scratch a 3, what is the hardness?
Between 3 and 6.
What type of rock can metamorphic rock form from?
Metamorphic, Sedimentary, Igneous
The process of rocks being changed into other types of rocks.
Rock Cycle
The property of breaking along flat surfaces.
Cleavage
How are graphite and diamond similar?
Both made of carbon.
A mineral can scratch a 1 but be scratched by a 2, what is the hardness?
Between a 1 and 2.
What type of rock is broken down by weathering and erosion?
Metamorphic, Sedimentary, Igneous
A type of sedimentary rock consisting of pebbles cemented together.
Conglomerate
Solid compounds that occur in Earth's crust naturally.
Minerals
How are graphite and diamond different?
Diamond has a stable structure.
Graphite has an unstable structure.
What is the scale called that we use to determine a mineral's hardness?
Mohs Scale of Hardness
If you found a rock face that consisted of layers and had shells embedded into it, what could you infer about this rock?
Formed under a body of water.