Sedimentary
Metamorphic
Igneous
Minerals
Formation of Rocks
100
Contains mixtures of shells, coral, and other marine skeletons
What is limestone
100
has very distinguishing layers of light and dark
What is Gneiss
100
Appears black with glassy texture
What is obsidian
100
used to describe how light is reflected from the surface of the mineral
What is luster
100
formed by compaction and/or cementation
What is sedimentary rock
200
These rocks come from chemical precipitates and evaporites
What are Rock Salt, Rock Gypsum, and Dolostone
200
formed at very low temperatures and pressures, rock breaks along nearly perfect parallel planes
What is slate
200
has gas pockets and light color
What is pumice
200
the measure of resistance of minerals to being scratched on glass
What is hardness
200
heating of sedimentary rocks
What is metamorphism
300
less than 0.0004 cm
What is the grain size of shale
300
__________ Metamorphic Rocks are identified on basis of their texture
What is Foliated
300
very coarse and light
What is Pegamtite
300
sometimes called fool's gold
What is pyrite
300
formed from the melting and solidification of other rocks
What is igneous rocks
400
Has hints of green from compacted plant remains
What is Bituminous Coal
400
Metamorphism of limestone or dolostone
What is marble
400
usually used for countertops
What is Granite
400
contains silicon and 2 oxygen
What is quartz
400
the rapid cooling of magma
What is extrusive
500
Breccia's identifying characteristics
What is Angular Fragments
500
formed from contact metamorphism
What is hornfels
500
formed deep within Earth's surface
What is Intrusive rock
500
bubbles with acids and has rhombohedral clevage
What is Calcite
500
another word for instrusive
What is plutonic
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