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Rock Types

Rock Type Example Occurrence along Front Range
Sedimentary Red / Pink Sandstone
ShaleConglomerateLimestone
Plains, Plateaus, flanks of mountain areas, Pawnee Buttes
Igneous Extrusive: Basalt Limited…Table Mountain near Golden, remnants in RMNP
Intrusive: Granite/Diorite Arthurs Rock, Horsetooth Rock., Longs Peak, Pikes Peak
Metamorphic Quartizite- (from sandstone)Gneiss- (from granite/sandstone)Schist- (from shale or basalt) Most mountain areas, most canyons
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