mossyrockhound
fully equipped rock polisher
Member since January 2011
Posts: 1,315
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Post by mossyrockhound on Oct 22, 2018 20:08:17 GMT -5
I thought this was unusual enough to post. The limb cast (about 10-inch diameter):  The captured petrified wood:  Thanks for looking  |
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Post by hummingbirdstones on Oct 22, 2018 20:12:20 GMT -5
That's awesome! Thanks for sharing it.
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Post by Peruano on Oct 22, 2018 20:15:40 GMT -5
I guess your description is correct, but I'm having trouble envisioning a capture.
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mossyrockhound
fully equipped rock polisher
Member since January 2011
Posts: 1,315
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Post by mossyrockhound on Oct 22, 2018 20:36:55 GMT -5
I guess your description is correct, but I'm having trouble envisioning a capture. The limb cast just opened it's mouth and swallowed the petrified wood - lol! Actually I believe during the decomposing of the original 10-inch cast, part of the wood didn't manage to decompose completely before the pocket began filling with silica so it ended up floating around inside the pocket until it was completely encapsulated by the silica. Can't say for sure, since I wasn't there. |
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Post by fantastic5 on Oct 22, 2018 21:03:16 GMT -5
That's awesome!
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Post by MsAli on Oct 22, 2018 21:22:51 GMT -5
Really cool! I wonder how often that happens.
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mossyrockhound
fully equipped rock polisher
Member since January 2011
Posts: 1,315
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Post by mossyrockhound on Oct 22, 2018 21:39:05 GMT -5
Really cool! I wonder how often that happens. Thanks for the comment. I've never seen this before, where you could actually make out the details of the encapsulated piece. |
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Post by rockjunquie on Oct 23, 2018 4:54:34 GMT -5
THAT is super cool!
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Post by fernwood on Oct 23, 2018 5:13:45 GMT -5
Very unique.
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Post by MsAli on Oct 23, 2018 5:36:30 GMT -5
Really cool! I wonder how often that happens. Thanks for the comment. I've never seen this before, where you could actually make out the details of the encapsulated piece. Did you find this? |
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Post by Peruano on Oct 23, 2018 6:39:56 GMT -5
So what you have may be an agate within an agate. Or could the inclusion be opalized. I find opalized wood that has a fibrous appearance, is softer, and sometimes ringed with a harder, shinier, and less porous matrix. And yes, its likely that the silica replacement occurred at different times. I'm trying to think of better analogs. I was not trying to be a smart xxx, but rather struggling with the words.
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mossyrockhound
fully equipped rock polisher
Member since January 2011
Posts: 1,315
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Post by mossyrockhound on Oct 23, 2018 8:22:09 GMT -5
Thanks for the comment. I've never seen this before, where you could actually make out the details of the encapsulated piece. Did you find this? I bought it from an elderly gentleman in his 90's. I think he said they found it in the vicinity of the South Fork of the Crooked River, OR. Most of his rocks were collected in the Pacific NW - in places now closed to the public. |
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mossyrockhound
fully equipped rock polisher
Member since January 2011
Posts: 1,315
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Post by mossyrockhound on Oct 23, 2018 8:35:57 GMT -5
So what you have may be an agate within an agate. Or could the inclusion be opalized. I find opalized wood that has a fibrous appearance, is softer, and sometimes ringed with a harder, shinier, and less porous matrix. And yes, its likely that the silica replacement occurred at different times. I'm trying to think of better analogs. I was not trying to be a smart xxx, but rather struggling with the words. The encapsulated piece is agatized/jasperized wood based on how it polished - appears to be the same hardness as the rest of the stone. Also, the encapsulated piece runs through the cast at an angle, so during the formation process it looks like one end was somehow caught or suspended higher than the other end. Unfortunately I only have this one piece, about 2" thick, but the angle is obvious when looking at both sides of the slab. |
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Post by Peruano on Oct 23, 2018 9:13:12 GMT -5
This post prompted me to go looking at some of my fav agate sources. Do you know agateswithinclusions.com/about-pat/ A quick survey did not show anything like your specimen. Its worth a visit to see a myriad of forms and don't miss his photo of his shop - now that's a collection of slab saws. Cheers. |
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Fossilman
Cave Dweller 
Member since January 2009
Posts: 20,723 
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Post by Fossilman on Oct 23, 2018 9:28:49 GMT -5
A very nice piece of material.... AWESOME!
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Post by miket on Oct 23, 2018 9:30:19 GMT -5
Wow, I do like that. Nice.
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Post by rockjunquie on Oct 23, 2018 9:41:33 GMT -5
This post prompted me to go looking at some of my fav agate sources. The book is pretty awesome, too! |
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Post by MsAli on Oct 23, 2018 9:55:39 GMT -5
I bought it from an elderly gentleman in his 90's. I think he said they found it in the vicinity of the South Fork of the Crooked River, OR. Most of his rocks were collected in the Pacific NW - in places now closed to the public. It is a lucky buy for you. Dont let that one go |
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mossyrockhound
fully equipped rock polisher
Member since January 2011
Posts: 1,315
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Post by mossyrockhound on Oct 23, 2018 11:34:56 GMT -5
This post prompted me to go looking at some of my fav agate sources. Do you know agateswithinclusions.com/about-pat/ A quick survey did not show anything like your specimen. Its worth a visit to see a myriad of forms and don't miss his photo of his shop - now that's a collection of slab saws. Cheers. Thanks - great website, and those slab saws - wow! I had to show my wife the saws because she thinks I have too many (I only have 6 slab saws). |
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Oct 23, 2018 13:06:19 GMT -5
I think he said they found it in the vicinity of the South Fork of the Crooked River, OR. That locale makes perfect sense. I've found bits of permineralized wood in limb casts from that location, too. Very pretty piece! |
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