This is a jasper of unknown origin that we picked up at an estate sale. It has some pretty awesome patterns and coloration. While it is pretty hard, it does have some pits, especially on one face. You will either need to seal those or incorporate them into your work. It sure is a beauty, though.
Measurements (inches - longest - approx): 4.2 x 3.5 x .32
The last photo has been taken dry so that you may see any defects. The other images were taken wet to simulate a polish.