Rock Types
cooling and melting leads to this type of rock
what is igneous rock?
this testing method involves using a finger nail
what is hardness?
the process of a sediment turning into a sedimentary rock
what is compaction & cementation?
this word means light color
what is felsic?
what is intrusive?
heat and pressure leads to this type of rock
what is metamorphic rock?
involves using reflection
what is luster?
the process by which magma turns into igneous rock
what is cooling and melting?
this word means dark color
what is mafic?
if a rock is aphanitic and fine-grained, it is also considered ______
what is extrusive?
compaction & cementation lead to this type of rock
what is sedimentary rock?
another name for trail or line that a rock leaves behind
what is streak?
the process by which an igneous rock turns into sediment
what is weathering & lithification?
this word means in between light and dark color
what is intermediate?
if something is fine with large embedded crystals, it is also considered _______
what is Porphyritic?
________ melting turns into magma
what is Metamorphic rock?
if a mineral does not have cleavage then it has _______
what is Fracture?
the process by which igneous or sedimentary rocks turn into metamorphic rock
what is heat and pressure?
peridotite, dunite, norite, essexite, and komatite, are all apart of this composition group
what is ultramafic?
if something is NON-foliated, it does not have any ______
what is layers?
this rock forms when magma solidifies
what is igneous rock?
if minerals break smoothly, it has ________
what is cleavage?
the process by which metamorphic rock turns into magma
what is melting?
this rock is the one exception to the composition chart
what is obsidian?
if something has layers, it is considered _______
what is foliated?