Naked Science Forum

Non Life Sciences => Geology, Palaeontology & Archaeology => Topic started by: rbarr3 on 12/06/2011 18:23:46

Title: Can you identify these odd rocks please??
Post by: rbarr3 on 12/06/2011 18:23:46

This first rock I found recently in Africa. The top shiny layer is also contained inside the rock some. (https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fwww.flickr.com%2Fphotos%2F63953226%40N05%2F5825279582%2Fin%2Fphotostream%2F&hash=c71e843b29973ab12d76a40c602ab8cd) (https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fwww.flickr.com%2Fphotos%2F63953226%40N05%2F5824722721%2Fin%2Fphotostream%2F&hash=b6c8742e8c03205d3417023c2ae7682b)
This is the more interesting rock though. It weighs a little more than one pound. It was found when plowing a field. (https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fwww.flickr.com%2Fphotos%2F63953226%40N05%2F5824724551%2Fin%2Fphotostream%2F&hash=b16855f658f909d6a865f0aec29ff2b9)
(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fwww.flickr.com%2Fphotos%2F63953226%40N05%2F5825286238%2Fin%2Fphotostream%2F&hash=6ff2cede6230b9eb884f084d498a0e66)
(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fwww.flickr.com%2Fphotos%2F63953226%40N05%2F5825288208%2Fin%2Fphotostream%2F&hash=83068d6c87c5d15ce1d8856e276637d8)
Any help is greatly appreciated!!

Title: Can you identify these odd rocks please??
Post by: imatfaal on 12/06/2011 19:10:13

Sorry - Rbarr, I cannot see your pictures.

There is thread to explain how to past pictures here:
http://www.thenakedscientists.com/forum/index.php?topic=2893.msg22519#msg22519

Title: Can you identify these odd rocks please??
Post by: RD on 12/06/2011 20:45:33

Quote from: rbarr3 on 12/06/2011 18:23:46

 [ Invalid Attachment ]

http://www.flickr.com/photos/63953226@N05/5824724551/in/photostream

The cubic shapes look like pyrite (http://en.wikipedia.org/wiki/Pyrite#Gallery) (which in your case has gone a bit rusty).

http://www.thenakedscientists.com/forum/index.php?topic=34942.msg329786#msg329786
http://www.flickr.com/photos/humanenigma/5148070560/sizes/l/in/set-72157625319543654/

Title: Can you identify these odd rocks please??
Post by: rbarr3 on 12/06/2011 21:24:51

If you right click you can see them on flickr. I'll work on getting them up through photobucket. I'm not sure why it didn't work.

Title: Can you identify these odd rocks please??
Post by: Bass on 12/06/2011 23:03:30

Welcome to the forum!

RD is correct.  That brown rock is definitely some sort of pyrite nodule (now oxidized).  Can't bring up the picture for the first rock?

Title: Can you identify these odd rocks please??
Post by: RD on 12/06/2011 23:38:46

Quote from: Bass on 12/06/2011 23:03:30

... Can't bring up the picture for the first rock

(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Ffarm4.static.flickr.com%2F3542%2F5825279582_e3d147333b_z.jpg&hash=4c0e5c2808f257ff9f257081b2e9a516)

(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Ffarm4.static.flickr.com%2F3138%2F5824722721_59eb356bf4_z.jpg&hash=6cc0fd7efdf481b749362a58aaca5bb2)