firewalker45
freely admits to licking rocks
Member since August 2006
Posts: 929
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Post by firewalker45 on Sept 13, 2007 14:29:07 GMT -5
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Post by BuiltonRock on Sept 13, 2007 14:31:11 GMT -5
Very interesting!
john
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,487
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Post by Sabre52 on Sept 13, 2007 15:41:06 GMT -5
Wow that is quite odd. Never seen anything exactly like it.....Mel
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Post by flintfish on Sept 13, 2007 15:48:09 GMT -5
It looks a little like some of the weird flints we find on the south downs of UK sometimes, is it glassy like a flint? Occasionally I get a flint with shiny glassy lustre and matte discoloured inclusions, often in blobby patterns like that, I don't have a saw, so only see 'em when I'm flint hunting, hammer in hand. I never brought one home, mainly because I'm too weighed down with the deep brown glass flints.
I'll be interested to know what 'ya got.
Cheers,
H
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firewalker45
freely admits to licking rocks
Member since August 2006
Posts: 929
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Post by firewalker45 on Sept 13, 2007 21:14:36 GMT -5
Yes John this is interesting and yet strange. Mel, if you have no idea what it is, I don't think I'll get it IDed. Harry, no it is not glassy, it is tight grained like a porcelin Jasper. I'll see if I can post a pic of the back side soon, maybe that will help. Daniel
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Post by Lady B on Sept 13, 2007 22:27:11 GMT -5
What ever it is by name, Daniel, this is one fascinating rock! It looks like someone splotched paint on it here and there!
Laday B
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Post by ladyt on Sept 14, 2007 5:14:42 GMT -5
Is it polka dot jasper? Looks cool. Tonja
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stefan
Cave Dweller
Member since January 2005
Posts: 14,113
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Post by stefan on Sept 14, 2007 9:49:38 GMT -5
Looks a lot like a chert- they are grainer than flint (flint being about 95% pure and Chert reaching in the neighbor hood of 85% Silicon dioxide) Still a very cool rock- any idea on collection site?
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Post by flintfish on Sept 14, 2007 10:08:37 GMT -5
Uh Oh - Flint or Chert? Lol I do get a lot of grainey stuff kicking about, I found an almost lilac purple one a few years back, was quarty as hell, I dumped it 'cause if 'ya can't knap it why take it home? Doah!!!!! This was before my interest in polishing and tumbling kicked in! I wonder if it's still there? I was at the hill fort known as Cadbury Castle - thought to be the actual site of the mythical Camelot! And dumbo here left the treasure behind! Oh well..... How hard was it? might help to narrow in the search. Cheers, H
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Post by Tonyterner on Sept 14, 2007 11:34:02 GMT -5
Yes that's an odd one. Looks like you've had a busy day at the saw. Good for you.
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firewalker45
freely admits to licking rocks
Member since August 2006
Posts: 929
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Post by firewalker45 on Sept 14, 2007 11:41:22 GMT -5
Hi all, Tonja I don't think it is polka dot agate (but that was a good guess. Stefan: It would not scratch my neighbor's window and I was able to scratch it with a file so I would say it has a hardness of 6. It is from a collection I got so do not know where it was collected. I'm not good at IDing, thats why I come here often. Thanks all, Daniel
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rallyrocks
fully equipped rock polisher
Member since November 2005
Posts: 1,507
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Post by rallyrocks on Sept 14, 2007 13:32:00 GMT -5
It looks quite a bit similar to a chert nodule I found in an ancient mud flow in Montana. The rind around mine wasn't stable so it came out more in pieces, but very similar to the look and how you describe this stuff
While a little bit inconsistent in hardness, I've managed to cut a couple of nice cabs from my stuff, mine had similar gray portions and also some dentritic inclusions, the harder parts take a pretty good shine, I'm just in the middle of finishing the backside on one that I'll post later.
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Post by larrywyland3 on Sept 14, 2007 14:33:17 GMT -5
cool
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