Black River Fossil Forums

	Register Login
	Save this page to del.icio.us Bookmark this page search

October 13, 2008

Fossil Hunting

Fossil Forum

Fossil Articles

Paleo Cartoons

Contact Us

Fossil Hunting Excursions

Image Gallery

Fossil Links

FAQ

Trip Reports

Forums

A quick note about the forums

In order to post on these forums, you must be a registered member of this site. Membership is free and open to all. Use the register link to apply.

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

Forums

Forum Home

Fossils

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

184 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

12 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.

Page 1 of 1