[Rockhounds] Pics for id

[jb]

leinani35 at yahoo.com wrote:
> Ok, I was finally able to join the rockhounds.ning.com and post my pictures that we need help with the id's. As far as copying the links to the pics, beats me! Not sure how to do that. I know I created an album called Rock ID and uploaded 5 pics to it named: Rock ID 001 - Rock ID 005. My name is Shawn Hendricks and the info on the pics is copied again below. If anyone is able to help, I sure appreciate it.
>  
> Hello Everyone,
> Could you please help us with what these are?
>
> pic 001 we are not sure
>
>   

The color variations and texture would seem to me to be some kind of 
jasp-agate or moss agate. If it is from OK, then it could also be 
so-called Albiates Flint, which originates in NW TX and was widely used 
and traded among the aboriginal Americans.


> pic 002 we think is petrified wood, we found at the bottom of Overholser
> Dam in OK
>
>   

This could be wood, but it could also be finely-layered sandstone which 
has been further silicified. I have seen lots of it around the 
Southwest, including TX and OK, and it is easily confused with wood. 
Sometimes the only way to distinguish the two is by polishing the 
cross-grain and looking for wood structures.

> pic 003 another pic of 002
>
> pic 004 Aaron wants to know what this is or what this would have been
> maybe if he did not crack it open. The center is red and chalky but seems to get harder as we scrape it but I told him to stop.
>
>   

An ironstone concretion, which happens to be hollow. Mostly various iron 
oxides as Jim Murowchick indicated.  It could also be a piece of slag 
from an iron foundry, or a "clinker" from a coal-burning locomotive.



> pic 005 This is dense, and it writes, Aaron thinks lead?
>   

Can't tell from the picture. There aint a whole lot of molybdenite in 
OK, maybe none that is native. Not a whole lot of graphite either, ditto.
I would guess that it is not a native stone but some kind of foundling.  
Maybe lead (which would easily melt to confirm; maybe a casting for 
making bullets or such).   Or slag ( if soft, perhaps from a battery 
recovery plant, etc).  Or a wheel balance weight from a big truck. Need 
more information.

>  
> Thank you all,
> Shawn
>
>   


john