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Originally posted by Fazza!
My housemates know a bit about geology (one of them is studying it at uni ) and they think it looks like Chondrite - a type of meteorite.
"The reddish colour suggests it is largely composed of Iron and it appears to have rusted somewhat. The uneven surface could be a result of chips as it hit and then bounced along the ground and are a result of weathering over time." - Fazza's housematesedit on 23/3/2011 by Fazza! because: (no reason given)
Originally posted by jude11
reply to post by ThaLoccster
Without actually seeing it my hands, I'm going with shale. I have seen large shale deposits and it looks like this exactly. IMO
Originally posted by Serizawa
They contain the mineral hematite, which is an iron oxide that is similar to rust. Should be an eclogite.
edit on 23-3-2011 by Serizawa because: (no reason given)
Originally posted by Aggie Man
In my opinion, the majority of that grayish rock is chert. The dark reddish individual rock is some sort of quartz.
Originally posted by JBA2848
The Ouachita Mountains are composed of sandstones, siltstones, shales, cherts, novaculites, and a few limestones. These sedimentary rocks were deposited in a deep ocean basin under thousands of feet of water. Novaculite is somewhat unique to the Ouachitas. It is a very dense, even-textured cryptocrystalline rock composed of microcrystalline quartz bound together. Novaculite is the rock that makes the very best whetstones (knife-sharpening stones).
www.encyclopediaofarkansas.net...#edit on 23-3-2011 by JBA2848 because: (no reason given)