Another important learning: why the hell would anyone sell a face safety shield with a non-clear visor? The view is blurry enough that you pretty much have to put your face in whatever you're working on, which I'm not sure improves safely. Fortunately, Dremels aren't high-torque tools, and they're far more likely to bog down or even stop than to catch something and launch it at high speed.
Anyway, here is this week's geode:
And the one from last week: