choochoorocks
starting to spend too much on rocks
Rock hounding
Member since April 2020
Posts: 146
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Post by choochoorocks on Nov 2, 2023 23:09:48 GMT -5
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Post by Pat on Nov 2, 2023 23:22:55 GMT -5
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Post by Peruano on Nov 3, 2023 6:34:04 GMT -5
It would be more informative if we had a fresh cut or windowed view of the internal, non eroded structure. I'd vote no on the basis of too little information.
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Post by susand24224 on Nov 3, 2023 16:19:53 GMT -5
I've got something a bit similar that I have cut a window on--I'll see if I can find it and post a photo. It doesn't have the different colors, but I've likewise wondered if it is whale bone.
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Post by rmf on Nov 3, 2023 17:40:17 GMT -5
choochoorocks Where you found it, based on a geologic map. It could be anything from marine sediments to metamorphic and igneous, they all roll down hill to the ocean. Not to mention the faulting. To me just from the images I would guess a garnet schist. can you pull off greenish mica with a pocket knife?
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choochoorocks
starting to spend too much on rocks
Rock hounding
Member since April 2020
Posts: 146
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Post by choochoorocks on Nov 4, 2023 0:00:23 GMT -5
Ok, I used my flat tap on one end. I applied some cerium oxide polish, and found that it seems to outline bone structure. What do you guys think? Looks like bone to me? After I took the photo, I tried to wash the polish off, but wasn't very successful.
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Post by susand24224 on Nov 4, 2023 2:01:09 GMT -5
Here's my "assist," (hopefully)--two rocks found on the beach of San Juan Island off the coast of Washington State. 1. Rock #1, Rock surface, wet: 2. Rock #1, cut edge, wet: 3. Rock #1, surface, dry: 4: Rock #1, cut edge, dry: 5. Rock #2, wet (no end cut on this one): 6. Rock #2, dry: Rock #1 looks a good bit like the "subject" rock.
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choochoorocks
starting to spend too much on rocks
Rock hounding
Member since April 2020
Posts: 146
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Post by choochoorocks on Nov 4, 2023 10:49:30 GMT -5
I think I see bone cell structure in #2 but can't be sure. Photographs are so bad at conveying minute details sometimes.
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Post by susand24224 on Nov 4, 2023 16:30:01 GMT -5
I think I see bone cell structure in #2 but can't be sure. Photographs are so bad at conveying minute details sometimes. I agree--and it's not easy in person, either. The first one I really cut in the wrong direction to see any bone cell structure but it was all I could do with my trim saw. I may try it again in the large rock saw if I can secure it. But I really posted the photos to maybe help with yours--#2 was just hanging out with #1 so I grabbed it as well.
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choochoorocks
starting to spend too much on rocks
Rock hounding
Member since April 2020
Posts: 146
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Post by choochoorocks on Nov 5, 2023 22:37:33 GMT -5
I think I see bone cell structure in #2 but can't be sure. Photographs are so bad at conveying minute details sometimes. I agree--and it's not easy in person, either. The first one I really cut in the wrong direction to see any bone cell structure but it was all I could do with my trim saw. I may try it again in the large rock saw if I can secure it. But I really posted the photos to maybe help with yours--#2 was just hanging out with #1 so I grabbed it as well. Thanks for posting your rock photos! I'm curious where you found them. #1 doesn't seem similar to mine. But then again it's really hard to tell from photos.
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Post by susand24224 on Nov 6, 2023 1:40:50 GMT -5
[/quote]
Thanks for posting your rock photos! I'm curious where you found them. #1 doesn't seem similar to mine. But then again it's really hard to tell from photos.[/quote]
I agree it's not that similar--but what caused me to compare was the intermittent "red." Also difficult to see in photos is that the color bands are quite methodical. It is also smooth and worn, likely due to ocean activity. I found it on the beach at San Juan Island, in Washington State, actually, found both of them there. I met a fellow rockhound there who says she looks for rocks almost daily and had never seen anything else with the pattern of #1--it's not exactly exciting, but it is very interesting. To my knowledge there is no dino bone in that area, so if either is bone it is likely whale bone.
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rockbrain
Cave Dweller
Member since January 2022
Posts: 2,507
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Post by rockbrain on Nov 6, 2023 18:42:44 GMT -5
Ok, I used my flat tap on one end. I applied some cerium oxide polish, and found that it seems to outline bone structure. What do you guys think? Looks like bone to me? After I took the photo, I tried to wash the polish off, but wasn't very successful. Looks like bone structure to me but I'm sure I could be fooled by coral or sponge.
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Post by velodromed on Nov 7, 2023 10:32:26 GMT -5
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gemfeller
Cave Dweller
Member since June 2011
Posts: 3,776
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Post by gemfeller on Nov 7, 2023 19:06:36 GMT -5
Looks like it could be to me. This is a polished specimen I collected near my former home in Pismo Beach, CA.
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gemfeller
Cave Dweller
Member since June 2011
Posts: 3,776
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Post by gemfeller on Nov 7, 2023 19:20:00 GMT -5
Just remembered I had some rough, same location. Here's an example (iron stained from the tin can I stored it in):
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Post by jasoninsd on Nov 7, 2023 22:07:22 GMT -5
choochoorocks - I know you're not looking for a "poll"...but I'm in the "it sure looks like bone to me" camp! The cellular structure looks spot-on from everything I've worked or seen...for what that's worth...which isn't all that much! LOL
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,681
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Post by Fossilman on Nov 8, 2023 12:53:35 GMT -5
It's bone..
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Post by jasoninsd on Nov 8, 2023 16:58:58 GMT -5
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Post by realrockhound on Nov 8, 2023 17:20:36 GMT -5
Definitely whale boner.
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choochoorocks
starting to spend too much on rocks
Rock hounding
Member since April 2020
Posts: 146
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Post by choochoorocks on Nov 10, 2023 1:41:56 GMT -5
Thanks guys for the id.
I'm curious though why we think it is whale bone, and not the bone of some other large creature? Dinosaur?
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