Studied by 4 people
Rocks with large grains means…
Cooled down slower
Rocks with small grains means…
Cooled down faster
Large grains
Intrusive
Small grains
Extrusive
Less dense rocks
Above
Dense rocks
Below
Oval dots in a line or curve (visibly metamorphic- heat and pressure)
Curved Grain
Sedimentary- Eroding
Layers
Erosion
Slow
Melting
Fast
Heat and Pressure
Slow
Cooling from volcano
Fast
Cooling from magma bubble
Slow
Compaction
Slow
Closest to the Fault Lines
Metamorphic
Took a long time to form
Big crystals
Formed quickly
Small crystals
What do we use minerals for
Gemstone, Gypsum board, Aggregate, Metal manuacture
Rounded, jagged
Grain shape
Course, fine
Grain size
Banded, nonbanded
Grain pattern
Note 
Flashcard (63)