mjflinty
spending too much on rocks
Member since September 2011
Posts: 356
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Post by mjflinty on Nov 8, 2012 8:52:40 GMT -5
Hi All, I friend of mine sent me some stone he collected from a quarry in New York state. I think it is some sort of seam chert as the host matrix is limestone. I have never seen anything like this and would love to be able to put a name on it. Upon close inspection I see very small seams of silver running thru the stone perpendicular to the black lines. Any ideas? As you can see it took a great polish in the vibe. Thanks, Michael Attachments:
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Post by Bikerrandy on Nov 8, 2012 21:22:03 GMT -5
I've never seen anything like that, very cool!!
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snuffy
Cave Dweller
Member since May 2009
Posts: 4,319
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Post by snuffy on Nov 8, 2012 21:28:22 GMT -5
I've not seen any like that either! Certainly nice material! snuffy
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,466
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Post by Sabre52 on Nov 8, 2012 22:26:03 GMT -5
Very pretty chert. As you've pointed out, chert comes from limestone and true flint from chalk . I checked some lithic sites and apparently New York has 95 named chert varieties. Wow! None that were described or pictured matched your specimens but they only covered a handful....Mel
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,158
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Post by jamesp on Nov 11, 2012 15:34:21 GMT -5
Never ever know what pattern/color is next.That is amazing material.
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mjflinty
spending too much on rocks
Member since September 2011
Posts: 356
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Post by mjflinty on Nov 11, 2012 16:59:32 GMT -5
I have a little more left. Now that I know it'll take a polish I'm going to cab the rest.
Michael
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carloscinco
fully equipped rock polisher
Member since July 2008
Posts: 1,639
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Post by carloscinco on Nov 11, 2012 19:56:17 GMT -5
Nice looking material.
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Post by tandl on Nov 12, 2012 18:56:07 GMT -5
That is cool chert ! im thinking the pattern lines are from coral or other fossil ?
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