miander
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Post by miander on Jun 7, 2014 20:59:29 GMT -5
I found this specimen and was wondering if it is a fossil of some type. If anyone could advise, I would appriciate it!
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Post by snowmom on Jun 8, 2014 5:16:42 GMT -5
hard to tell from the photo.. are the little circles defined with what looks like cell formation( can you see the cells?) almost looks like tube agate in some ways. Can't see the details. If you could post a couple photos from different angles it might help. thanks!
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miander
spending too much on rocks
Searching for the shop of my dreams...
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Post by miander on Jun 9, 2014 13:39:08 GMT -5
hard to tell from the photo.. are the little circles defined with what looks like cell formation( can you see the cells?) almost looks like tube agate in some ways. Can't see the details. If you could post a couple photos from different angles it might help. thanks!  |
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Deleted
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Post by Deleted on Jun 9, 2014 14:24:20 GMT -5
I'm thinking stromatolite.
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miander
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Post by miander on Jun 9, 2014 15:22:19 GMT -5
Thank you rockstodust, but I don't know what that is...
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Thunder69
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Post by Thunder69 on Jun 9, 2014 19:43:28 GMT -5
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jamesp
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Post by jamesp on Jun 9, 2014 20:43:33 GMT -5
I thought stromatolite too. But was waiting for someone else to chine in so I could get the spelling.
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tkvancil
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Post by tkvancil on Jun 10, 2014 1:05:28 GMT -5
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mibeachrocks
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Post by mibeachrocks on Jun 10, 2014 8:00:54 GMT -5
While it might be a Stromatolite, it is unlike anything I've seen in the midwest. They are very common here since they were a major reef builder during the Devonian. An easy way to tell is to look for layering. I appologize for not being able to post the document about Stroms but here are some screen captures of information that I put together for my wife's classroom.    Here are some finds from northern Michigan (look for the layering a.k.a. laminae)  also look for the "bumps/mounds" a.k.a. Mamelons on the upper surface  Also notice the indentations on the bottom  another example  Of course none of these are beach washed. I have to find pics of those. They look very much like sedimentary rocks though. I hope this helps |
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miander
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Post by miander on Jun 10, 2014 20:44:16 GMT -5
That's an awesome amount of info guys, thanks so much! I have another piece that looks like the stroma in the pictures above.
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miander
spending too much on rocks
Searching for the shop of my dreams...
Member since November 2013
Posts: 407
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Post by miander on Jun 10, 2014 20:47:35 GMT -5
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miander
spending too much on rocks
Searching for the shop of my dreams...
Member since November 2013
Posts: 407
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Post by miander on Jun 11, 2014 8:32:49 GMT -5
tkanvil - I looked at the link you sent and was blown away by you tumbles! You can do some incredibly beautiful things to the crusty beginnings above...  |
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tkvancil
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Post by tkvancil on Jun 11, 2014 11:22:35 GMT -5
tkanvil - I looked at the link you sent and was blown away by you tumbles! You can do some incredibly beautiful things to the crusty beginnings above... Thank you for the kind compliment. Are you going to cut that crusty beginning? If so I think we'd all like to see the inside. If its solid it would likely make a rockin' cool cab or three. Again I'm no expert but your last pic looks like it could an oolite to me. commons.wikimedia.org/wiki/File:Calcario1Ez.jpg Whatever the case very cool. |
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panamark
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Post by panamark on Jun 11, 2014 13:33:06 GMT -5
Also notice the indentations on the bottom This one looks very much like the fossilized coral in Michigan. It looks like you can see pretty clearly defined coralites (?) on the surface. The layered others pics are stromatolite, but this one looks different. Maybe James / jamesp or Rob / Jugglerguy or someone can jump in here as they know coral. |
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mibeachrocks
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Post by mibeachrocks on Jun 11, 2014 13:36:51 GMT -5
Also notice the indentations on the bottom This one looks very much like the fossilized coral in Michigan. It looks like you can see pretty clearly defined coralites (?) on the surface. The layered others pics are stromatolite, but this one looks different. Maybe James / jamesp or Rob / Jugglerguy or someone can jump in here as they know coral. Sorry I should have been more clear. The first three pics are all of the same rock. The top has "bumps", the bottom has "dimples" and you can see the layers in the side view. |
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Fossilman
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Post by Fossilman on Jun 12, 2014 9:02:49 GMT -5
stromatolite it is and a nice piece of it too,great score!!!!!
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miander
spending too much on rocks
Searching for the shop of my dreams...
Member since November 2013
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Post by miander on Jun 12, 2014 9:44:51 GMT -5
Thank you, coming from you - the fossil expert, I know that it must be  |
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Post by pghram on Jun 13, 2014 10:40:12 GMT -5
They can make nice cabs, are you going to cut it?  Rich |
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Post by jakesrocks on Jun 13, 2014 11:26:50 GMT -5
And just when you thought you had it all figured out. Not all stromatolites are created equal. From the Southern Sahara desert I bring you a different type of stromatolite.  This is actually the bottom of the critter. The top is just a rounded lump. |
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miander
spending too much on rocks
Searching for the shop of my dreams...
Member since November 2013
Posts: 407
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Post by miander on Jun 14, 2014 20:24:34 GMT -5
Rich - if my material could look like that cab, I will for sure! I though fossil lovers prefer their specimens as untouched as possible? Jake, that specimen looks huge! It almost looks like a mollusk, I thought it was more of a barnacle...it is beautiful though, almost looks like a flower |
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