rock cycle
sedimentary rocks
clastic
shale
sandstone
chemical
bituminous coal
chalk
limestone
igneous rocks
extrusive
pumice
rhyolite
obsidian
basalt
intrusive
granite
metamorphic rocks
foliated
regional metamorphism
gneiss
schist
nofoliated
contact metamorphism
slate
marble
anthracite coal
rock cycle
Added: 2010-02-14 00:59:45
From: (Joined 2010-02-14 00:15:11)
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rock cycle
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