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July 25, 2008

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Here are two links to posts dealing with how to post pictures on Black River Fossils forums.

1. How to Post Pictures on Black River Fossils Forums by ditchweezil

2. How to Post Pictures on Black River Fossils Forums by Daryl

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Identification Help

Fossil or Rock...

Fossil or Rock

5/4/2008 6:54:04 PM

falcondriver

24 posts

Fossil or Rock
Modified By ditchweezil on 5/8/2008 7:42:07 AM)

Sorry that the picture is so small. Has anybody seen something like this? Be happy to email big picture.

falcondriver47@hotmail.com

5/5/2008 3:17:13 AM

Daryl

162 posts

Re: Fossil or Rock

According to my friend, this is a Septarian Nodule. They can be cut and polished inside.

Daryl.

5/6/2008 3:05:46 PM

rock_splitter

9 posts

Re: Fossil or Rock

Daryl is technically correct that it is a septarian nodule. However, they seem to come two ways in Texas. In my experience you either find ones that are quite smooth on the outside and tend to have nice hollows inside with some dog tooth calcite and aragonite. Or, you find ones that look like what you show where they resemble a caricature of a turtle, and they tend to be solid inside and quite often will be easily fractured after just minor weathering. The ones I've found that look like that have tended to be rather drab in appearance. When you find the smooth ones that have hollow space inside they can be quite spectacular. Back when I lived in Texas and used to hunt there I found a large hollow septarian nodule in excess of 100lbs and it was THICK with calcite and aragonite and even a little pyrite inside.

5/7/2008 9:06:17 PM

falcondriver

24 posts

Re: Fossil or Rock

I'm not sure if I should cut in in half or not.

Thanks for the info.

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