spokanetim
has rocks in the head
Member since October 2009
Posts: 656
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Post by spokanetim on Nov 22, 2009 22:38:54 GMT -5
Hello, I was hoping someone out there might know what this is. I sort of looks like pet. palm and sort of like agetized coral. It's outside sort of looks like concrete, but its not, and the tubes are filled with what looks like quartz. This is a slab from a rock I found on the Yellowstone river in Montana.
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Post by texaswoodie on Nov 23, 2009 8:17:06 GMT -5
Never seen any palm that looked like that, but the western palms are different from what we have here. Almost looks like one cell animals of some sort.
Curt
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Post by Jack, lapidaryrough on Nov 23, 2009 8:29:07 GMT -5
Salt water tube worm`s, With sandstone sediments wash in around the fossilized tube worms.
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spokanetim
has rocks in the head
Member since October 2009
Posts: 656
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Post by spokanetim on Nov 23, 2009 20:48:12 GMT -5
Salt Water Tube Worms, I think you are right! I've seen them diving and they would look like this growing up in bunches. This stone has no pattern like a palm or coral would. Millions of years ago this part of Montana was a inland sea so it makes since. Might be interesting to see it cabbed, if only I could! All of it takes a good shine. You think it's valuable? I won't slice any more of it up with my workforce tile saw if it's worth saving.
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Post by Jack, lapidaryrough on Nov 25, 2009 8:43:24 GMT -5
Spokanetim
look the area over where you found the fossil, see if their are areas in the strata formation of highly agatetized material with tubes.
On the Oregon coast, Tubes fossil material is 12-30 million Bp. and breaks up easy in hand our with hammer.
Though your area maybe nice material in the area of what you`v posted in photo.
I fine common steamer clam fossil from the low tide to sister,s Oregon 130 mile`s inland.
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spokanetim
has rocks in the head
Member since October 2009
Posts: 656
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Post by spokanetim on Nov 25, 2009 22:34:07 GMT -5
Thanks for the advice Jack but I found it in the gravel of the Yellowstone River, east of Billings Montana. It could have washed down from pretty much any place east of the Rocky Mountains. This fossil is very solid and won't break apart. I'm pretty sure the sediments around the tubes are also quartz/agate as all of it polishes like glass.
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