This was a surface find in the Uwharrie National Forest.

First there are two important things to know. Anatase has been found in the same area this was found. There are three different polymorphs of titanium dioxide -- anatase, rutile, and brookite.  So I'm pretty sure it's one of those.  An extra tidbit is that brookite and anatase convert irreversibly to the rutile phase upon heating to 600–800 °C. And this makes sense as we have also found examples of anatase converting into rutile not too far from where I found this specimen.

The fact that I can see the reticulation pattern formed by rutile in the center of my specimen lets me know that rutile is the prime suspect.  However, the bladed structure around the reticulation is what I find interesting.  I wonder if it is one of the other forms of TIO2, brookite?