What are the 2 processes needed for the formation of metamorphic rocks?
Heat and Pressure
100
What is the process that only points to magma?
melting
200
What is the name of the non-metallic mineral that won't scratch glass and contains calcium?
Fluorite
200
What is the name of the igneous rock that is only composed of olivine?
Dunite
200
What is the sedimentary rock that has the same composition as a diamond?
Bituminous Coal
200
What is the rock composed of a mineral with a hardness of 7?
Quartzite
200
What is needed for sediments to become sedimentary rock?
Deposition/Burial, Compaction and/or Cementation
300
What is the name of the 2 minerals that are composed of the same elements, just with different proportions?
Hematite and Magnetite
300
What is the igneous rock that cooled fast, is felsic, has crystals that are less than 1mm in size, and has no gas?
Rhyolite
300
How are chemically formed sedimentary rocks formed?
Water has dissolved minerals within it, the water evaporates and what is left are the mineral crystals cemented together
300
What is the difference between contact and regional metamorphism?
Contact-molten material alters the rock it comes in contact with.
Regional-large area altered by intense heat and pressure. Usually associated with mountain building .
300
Get from sediments back to sediments in 3 steps
Deposition/Burial, Compaction and/or Cementation, Weathering and Erosion
400
What are the 3 mineral groups and give an example of each
Silicates, Carbonates, and Oxides
400
What is the term used to describe how the crystals interact with each other
Interlocking
400
What gives most sedimentary rocks their color?
the cementing agent
400
Name a landscape region of New York that consists of metamorphic rock?
Adirondacks, Hudson Highlands
400
What element is the Earth's crust mostly composed of?