Homework Help: earth science

Posted by ting on Thursday, October 9, 2008 at 9:33pm.

how do chemical rocks form, are some types of limestone considered a chemical rock, and what mineral does rock salt crystalize from? thank you so much if you choose to answer. im so stumped.

earth science - bobpursley, Thursday, October 9, 2008 at 9:34pm
rock salt crystallized from salt water.

Yes, some type of limestone are chemical rocks...gypsum is all around here.
earth science - ddds, Thursday, October 9, 2008 at 10:10pm
we have to write a 300 word essay on the three types of landforms and i only have 150.
earth science - E.G., Saturday, October 11, 2008 at 2:36pm
"rock salt" is the common name for the mineral halite.

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