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What is it
mem  
Posted : Saturday, 18 June 2011 4:14:38 PM(UTC)
mem

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Hi guys dows any one know what this is,it was found in the coromandel dry stream bed. Looks like a piece of charcoal with a piece of glass running right through the centre of it.
Thanks Mem.
File Attachment(s):
adrock.png
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Shilo  
Posted : Saturday, 18 June 2011 4:57:30 PM(UTC)
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mem wrote:
Hi guys dows any one know what this is,it was found in the coromandel dry stream bed. Looks like a piece of charcoal with a piece of glass running right through the centre of it.
Thanks Mem.



My family have always called it "Chert" when we have found it in the Coro streams. That glass seam is Chalcedony. Petrified wood can also look similar but when it comes in that form you normally see some grain.
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mem  
Posted : Saturday, 18 June 2011 6:25:19 PM(UTC)
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Thanks for that shilo,i have been wondering what it might be for some time now.
Thanks again Mem.
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oroplata  
Posted : Sunday, 19 June 2011 2:23:27 AM(UTC)
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Buy a jeweller's lupe (10x) and take a close look at that rock under a good light, and you will become addicted to mineralogy. :)

Trust me.

Check out the mineral database at http://www.mindat.org/
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WWW
Maverick  
Posted : Tuesday, 21 June 2011 5:00:53 PM(UTC)
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i like the look of that
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kiwijw  
Posted : Tuesday, 21 June 2011 5:46:03 PM(UTC)
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Edited by user Saturday, 9 July 2011 2:33:46 AM(UTC)  | Reason: Not specified
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oroplata  
Posted : Wednesday, 22 June 2011 3:46:08 AM(UTC)
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That looks nice.

I have a 10x and a 20x for checking out rocks. If I need a 30x I know where to get it, now. :)
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Lammerlaw  
Posted : Wednesday, 22 June 2011 7:28:34 AM(UTC)
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My money (5 cents only because I am poor, destitute and insolvent)says it is petrified wood or carbonised wood with a band of chert, agate or chalcedony running through it...and I expect a bottle of Chivas Regal if I am right haha (chocolates will do!!!)

On a serious note please tell us what it is when you have it positively identified and that needs to be done by someone who can examine it face to face or in this case face to rock though not violently!

Edited by user Wednesday, 22 June 2011 7:30:39 AM(UTC)  | Reason: Not specified
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