Macro Monday 18, red but not wine diamonds

I got these images while experimenting with a macro project. That first one far exceeds anything I'd expected. These are not extreme macro shots, only about 2 or 3x with 68 mm of extension tubes on, just because they happened to be on the camera anyways.

Is this a moon floating above Jupiter? Or something much much smaller?

I do have the shot that shows where these came from, but I almost don't want to show you, yet. Maybe if enough of you ask.