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Post by Jugglerguy on Jun 23, 2014 19:11:31 GMT -5
I just tried to scratch it with a dull jack knife. It left metal on the rock, so it's harder than steel, so I guess it's not limestone.
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Post by snowmom on Jun 23, 2014 19:11:32 GMT -5
Rob amazing how the lake ages and changes the outside of the stones, isn't it... that's a beautiful piece of rock! think it will polish up?
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Post by Jugglerguy on Jun 23, 2014 19:12:08 GMT -5
I hope so! I'm going to find out.
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Post by snowmom on Jun 23, 2014 19:12:32 GMT -5
fossilman, yours look almost flower like... very cool
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Post by Peruano on Jun 23, 2014 21:53:46 GMT -5
I'm guessing those round bodies are remnants of fossil algae. It may have started as calcium and later been transformed with silic or ?? but you are dealing with something that was living at one time in my best guess. Tom
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moonmopus
starting to shine!
Member since June 2013
Posts: 45
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Post by moonmopus on Jul 9, 2014 6:24:09 GMT -5
I'm guessing those round bodies are remnants of fossil algae. It may have started as calcium and later been transformed with silic or ?? but you are dealing with something that was living at one time in my best guess. Tom that's a very neat theory. jugglerguy, i have a semi-polished (as in, 'in process') also from michigan that has a striking resemblance to yours once cut. i've posted picsbelow: mm
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Post by Jugglerguy on Jul 9, 2014 17:49:21 GMT -5
Yep, that looks like the same thing. I'm interested to see how it polishes. I just made a cab from mine today and I was disappointed in the polish. I'm not super experienced at cabbing, but two other rocks I did today polished up great. My green rock didn't polish evenly. The lighter parts took more of a shine than the darker parts. It's actually a little shinier than the picture shows.
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moonmopus
starting to shine!
Member since June 2013
Posts: 45
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Post by moonmopus on Jul 9, 2014 21:39:57 GMT -5
rob, yeah, these are definitely siblings. the cab is cool.if you give the polish another go, please share the results.
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