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Crystallized fossils


PRK

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Here is a central TX echi I posted a month ago.

Shine a one of the cheap red lasers on it and listen for the ooo's and ahhh's. :D

The human mind has the ability to believe anything is true.  -  JJ

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I used this in another thread, so sorry for double usage. The center of a cycad that looks more like a geode.

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Jim

Old Dead Things

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Here is a gastropod with calcite crystals that I posted in another thread:

Bourghetia sp.

Oxfordian

Faisault (france)

P1100841.JPG

growing old is mandatory but growing up is optional.

 

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  • 3 weeks later...

This is a pic of my favorite piece of pet wood

It's got three of the major types of quartz crystals all in one piece

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Edited by PRK
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hello!

here are some crystallized fossils I have found in the past...:

Endoceras ordovician Sweden

Echinosphaerites aurantium, cystoids,ordovician Sweden

idem but in situ(baltic sea)

idem

Echinocorys sulcata paleocene Danian Demark

idem but full of calcedoine

Heteraster couloni lower Cretaceous France

Stylina sp, geode of Calcite, we ca see the internal structure Kimmeridgian upper Jurassic France

Phaneroptyxis morena....with a small nerinea inside....

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2 from the Ordovician of Kentucky, Treptoceras sp., Loxoplocus sp.

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"Absence of evidence is not evidence of absence"_ Carl Sagen

No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go.

" I think, therefore I collect fossils." _ Me

"When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes

"can't we all just get along?" Jack Nicholson from Mars Attacks

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Hi herb, thanks for your contribution to this thread

Here is another piece of pet wood from the siliceous aturia site I collect

Showing nice quartz crystals

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Edited by PRK
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Here is a crinoid stem piece that is covered with Smithsonite. It was found at the Kelly mine in Magdalena New Mexico.

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Tony

Edited by ynot

Darwin said: " Man sprang from monkeys."

Will Rogers said: " Some of them didn't spring far enough."

 

My Fossil collection - My Mineral collection

My favorite thread on TFF.

 

 

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Here are a couple that I have. There is a busy coral with crystals inside. A picture taken through a microscope is of a crinoid stem or arm with crystals. The picture of the fossil isn't as nice as it looked just peering through the microscope. The last one I am not sure there are fossils on but I do like the yellow crystals. :D

Patti

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Productid brachiopod found on a block of lower Carboniferous limestone (far too big to take home unfortunately!) in Trearne quarry, Ayrshire, UK =]

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. Now and then I run across these calcite Miocene clam geodes, but never with such a fortuitous split

Anadara, cockle shell

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Edited by PRK
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This internal mold of a cretaceous clam is entirely covered with what I guess is calcite. It's very translucent and varies from 2 to 5 mm thick with a gap in some places between the crystals and the limestone beneath.

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