My grandmother had this rock for a long time. I have no idea where she got it. It is a greyish-green color with white rock veins. The white rock seems a little rough where the grey-green is very smooth. It is about 8 inches long and 5 1/2 - 6 inches at the widest part. Could it be a type of jade?
Thanks for any information or advice.
I'm not sure what happened with the last picture but left it as it shows the length.
Hard to tell without really taking a personal look at it. My suggestion is to bring it to a mineral show and see if any experts can assist with the identification.