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Is this a fossil?

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inbtb
Cave Dweller

Member since May 2016
Posts: 351

Is this a fossil? Aug 4, 2016 10:50:20 GMT -5

Quote

Post by inbtb on Aug 4, 2016 10:50:20 GMT -5

fos 1 (Small) by Les K, on Flickr
This is one of the rocks we picked up while in AZ last winter. I started a batch in the tumbler last week of mixed AZ rocks. Yesterday I checked the progress and found this little guy. By mistake it went back into the tumbler for further grinding. I happened to remember it this morning so I pulled it out of the batch and the red spot looked smaller by about maybe half. Before I do any more damage what would you recommend my next step should be. Stop and set on shelf, or clean thoroughly in clear water than proceed to polish with the next batch ready for polish. Thanks.
One more pic for size.

fos 3 (Small) by Les K, on Flickr

Last Edit: Aug 4, 2016 10:53:58 GMT -5 by inbtb

Mark K Cave Dweller Member since April 2012 Posts: 2,816	Is this a fossil? Aug 4, 2016 14:26:02 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Mark K on Aug 4, 2016 14:26:02 GMT -5 That looks like a small piece of rhyolite from Keenan Camp.

Peruano
driving up their electric bill

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Member since March 2011
Posts: 2,427

Is this a fossil? Aug 5, 2016 17:33:09 GMT -5

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Post by Peruano on Aug 5, 2016 17:33:09 GMT -5

Determine if its limestone or something else likely to be a sedimentary product. It its rhyolite, its not likely to be a fossil (volcanic origin), but if its sedimentary, that round thing that looks sort of biological is indeed likely to be something fossilized. However you may have destroyed it unless its clearer once you cut below the surface. Just thinking outloud.

Tom
Combining bicycles, trailbikes, hiking, and rockhounding as a justification for enjoying the fresh air of New Mexico.

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Welcome to the Rock Tumbling Hobby Forum where we share a love of rocks and a sense of community as enduring as the stones we polish. The RTH Forum of www.RockTumbling.com is an Amazon Associate site and we earn money from qualifying purchases you make after clicking on our links such as this Rock Tumbling Supplies on Amazon link for instance, or any of our various product ads and banners. By clicking our links every time you begin your Amazon shopping experience, you are generating a bit of revenue for the forum which helps us cover our expenses. Thank you for your support!