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10 terms

Igneous Rocks

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Granite
tan/pink/white/black, phaneritic, intrusive, felsic
Scoria
Black/ Reddish Brown, Vesicular/Aphanitic, volcanic, intermediate
Andesite
Dark Gray with some white, aphanitic, volcanic, intermediate
Basalt
Brownish/Black, aphanitic, volcanic, mafic
Rhyolite
Grayish brown/ light gray with small black specs, aphanitic, volcanic, felsic
Obsidian
Black, Glassy, Volcanic, felsic
Pumice
White/tan, vesicular/aphanitic, Volcanic, felsic
Gabbro
black, phaneritic, intrusive, mafic
Diorite
black/gray, phanertic, intrusive intermediate
Tuff
white/tan, pyroclastic, volcanic, felsic