Earth Science Rocks & Minerals Flashcards
What 3 criteria must a sample have to be called a mineral
Naturally occurring
Inorganic
Solid
Best test
Streak
Worst test
Color
O
O
Why is tetrahedron important
Because how they are arranged determines the minerals properties
How is metamorphic rock made?
Heat and pressure
How is igneous rock made?
Melting and Solidification
How is sedimentary rock made?
Compaction and Cementation
What is chemical action
A way to make rock by chemical precipitation
Clastic
Pieces or fragments that are non living
Bio clastic
Pieces or fragments from life
What kind of rock forms when solidification occurs underground?
Intrusive igneous rock
What kind of rock occurs when solidification occurs on the surface?
Extrusive igneous rock
What does vesicular mean
Bubble holes
What is regional metamorphism?
When an entire area gets changed
What is contact metamorphism?
Only what gets touched gets changed
What should you look for in a sedimentary rock?
Fossils, shells, and flat layers
What should you look for in an igneous rock?
Glassiness, bubble holes, and crystals in no pattern
What should you look for in a Metamorphic rock?
Crystals in layers, foliation, and banding
What drives the rock cycle?
Sun and energy from earths interior
