Sorry there are so many pictures. But this one is hard to capture on film. It scratches glass, no reaction to acid. Cannot be scratched by knife. Does not streak or flake. There is 1 side that is so hard to capture- it is oval with what appears to be quartz in the center. 1 corner is milky transparent. The texture of the rough is not scratchy just mottled. As usual I have no idea where it is from. 4.7oz Roughly 7" diameter roughly 5/8th's H
But it really is a cool looking piece- I think it is for lapidary.
I am thinking agate but the red color stripes-only 2 side by side, the green inclusions and what appears to be calcite (but no reaction) and resembles limonite (no reaction) is throwing me out the window!
It was hard to capture good pictures- the predominate color is dark blue, the rough is almost a light walnut color.
Any help would be appreciated.