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zebra?
Aug 16, 2009 10:19:32 GMT -5
Post by stonesthatrock on Aug 16, 2009 10:19:32 GMT -5
i have these nodules and the man said they are called zebra Agates?? I have zebra marble. Anyone know the difference between zebras? lol ty mary ann
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,466
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zebra?
Aug 16, 2009 10:54:34 GMT -5
Post by Sabre52 on Aug 16, 2009 10:54:34 GMT -5
Hmm. Doesn't look to be translucent so I'm thinking not really an agate. Looks more like a flint or chert nodule to me. That sort of banding is pretty common to lots of sedimentary flints and cherts. Another possibility would be rhyolite similar to wonderstone which also sometimes comes in nodular forms......Mel
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zebra?
Aug 16, 2009 12:39:11 GMT -5
Post by stonesthatrock on Aug 16, 2009 12:39:11 GMT -5
ty mel, i didn't think he was correct, but he collected it so i thought maybe i was wrong......
mary ann
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zebra?
Aug 16, 2009 18:18:13 GMT -5
Post by Bikerrandy on Aug 16, 2009 18:18:13 GMT -5
I was thinking flint also, but that's a killer looking piece of flint!
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zebra?
Aug 16, 2009 21:15:24 GMT -5
Post by stonesthatrock on Aug 16, 2009 21:15:24 GMT -5
is flint the samething as chert? mary ann
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wyobrian
fully equipped rock polisher
GO VIKINGS
Member since February 2009
Posts: 1,739
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zebra?
Aug 16, 2009 21:23:42 GMT -5
Post by wyobrian on Aug 16, 2009 21:23:42 GMT -5
looks a lot like Wyoming banded flint from around Green River Wy. just my guess Brian
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bendsum
starting to spend too much on rocks
Member since October 2008
Posts: 140
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zebra?
Aug 17, 2009 2:08:21 GMT -5
Post by bendsum on Aug 17, 2009 2:08:21 GMT -5
i went out last fri looking for more os the same thing came home with other possible goodies and a fe unknowns . I remember finding a small chunk last summer and i beat it into gravel tryin to knapp it. Now i was some to slab. I i found it in a small dry creek bed in central Missouri
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,466
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zebra?
Aug 17, 2009 10:11:21 GMT -5
Post by Sabre52 on Aug 17, 2009 10:11:21 GMT -5
Mary Ann; Flint and chert are both sedimentary forms of microcrystalline quartz so are pretty much the same. Flint is often used to denote the finer quality material and chert, the more mundane stuff. In this area of Texas. The Pedernales Chert tends to be a banded very translucent material that occurs in veins and large nodules while the flint is often opaque nodular stuff but to me, they pretty much overlap because some of the flint nodules are very translucent and quite pretty.....Mel
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zebra?
Aug 17, 2009 11:38:17 GMT -5
Post by MyNewHobby on Aug 17, 2009 11:38:17 GMT -5
The only zebra stone I know of is the one I have from Australia I got in a raffle.
As always
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zebra?
Aug 17, 2009 22:22:19 GMT -5
Post by stonesthatrock on Aug 17, 2009 22:22:19 GMT -5
ty again mel, your da man.......... mary ann
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megalotis
starting to spend too much on rocks
Member since April 2009
Posts: 226
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zebra?
Aug 17, 2009 23:55:03 GMT -5
Post by megalotis on Aug 17, 2009 23:55:03 GMT -5
Mary Ann, there's some material from the Christopher Creek area just below the Mogollon Rim, not far east of Payson, AZ that looks just like that. It's called zebra agate or sometimes zebra jasper. It's nodular, kind of looks like a toadstool.
My friends tell me it's not really an agate, despite the common name...but I've never heard anyone id it positively.
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Saskrock
fully equipped rock polisher
Member since October 2007
Posts: 1,852
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zebra?
Aug 19, 2009 1:47:59 GMT -5
Post by Saskrock on Aug 19, 2009 1:47:59 GMT -5
Looks a heck of a lot like some obsidian I have. I think its layers of obsidian and ash. Don't have a pic of the rough but it cabs like this. How hard is it?
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