I recently cut some smokey (smoky?) quartz rough from Oban River, New England NSW. The rough was in fact pretty smooth as you can see from the picture, the individual pieces tumbled beforehand, as a prelude to faceting. The tumbling process has produced something beautiful in its own right, the shiny surface additionally allows any internal features (read: inclusions) to be clearly seen prior to cutting. The Oban River material cuts some lovely opposed-bar style gems, and certainly some neat checker flash effects can be obtained using cuts such as the one above, a Jeff Graham Mock Check Squares – Reflector design.
If any fossickers out there have some facet quality Oban River material available, please contact me, I would certainly be interested in obtaining more.