Help identifying these pieces

[Grislybooch]

Hello,

I found these pieces on a mountain near central California. The mountain is pretty much uninhabitedand i was wondering if anyone knows what it is? Is it worth getting analyzed at a local lab? Any input would be appreciated.

 

[arizau]

I am colorblind but if it is green it may be serpentine.

Found this site which may be of interest to you. How to find gold using rocks and minerals video - Hunting 4 Gold .com

Good luck.

 

[Rockwerx]

While fossil hunting we have found similar looking specimens here in Alberta. I found many such specimens in Cretaceous period soil layers. I was told they a form of calcite some of which may have been derived from plant and animal life of the Cretaceous period.

Not sure if that is what you have but might be a start. What other types of rocks were in the area? Any black shales in the area where you found the specimens?