Rock Types
Rocks that form beneath the Earth's surface and form large crystals.
What are intrusive igneous rocks?
The most useful way to identify a rock.
What is its mineral content?
This is the softest mineral.
What is talc?
The color of the powder of a mineral.
What is streak?
Sedimentary, Metamorphic, and Igneous
What are the three types of rocks?
Created from the deposition of sediments in layers over long periods of time.
What are sedimentary rocks?
How a sedimentary rock changes into a metamorphic rock.
What is heat and pressure?
This is the hardest mineral.
What is a diamond?
What is the measure of the ability for a mineral to resist scratching?
What is hardness?
The process by which sediment is squeezed and glued together into a new rock.
What is compaction and cementation?
Gneiss is this type of rock.
What is metamorphic rock?
This occurs when one type of rock changes into another.
What is the Rock Cycle?
This mineral is used in pencil lead.
What is graphite?
The splitting of a mineral along smooth, flat surfaces.
What is cleavage?
The settling out of sediment.
What is deposition?
Created from the cooling and solidification of magma or lava.
What are igneous rocks?
This type of rock contains fossils.
What is sedimentary rock?
This means non-living.
What is inorganic?
The way in which a mineral reflects light.
What is luster?
The name for the supercontinent that was believed to once exist.
What is Pangaea?
Rocks that form on the Earth's surface that form small (or no) crystals.
What are extrusive igneous rocks?
This is how rocks are classified.
What is by how they are formed?
Naturally occurring, solid, inorganic, and definite crystalline structure describes this.
What is a mineral?
Minerals come in all types of these...
What are colors?
The ratio of the mass of a substance to the volume of a substance.
What is density?