Hi Nexus,

SWIM did an STB extraction (MHRB) at room temp. It resulted in white crystals. SWIM has decided to go for wash in hot, fresh Benzinum medicinale. SWIM removed a small brown blob from the solution and poured the rest into a pyrex and put it back into the freezer. SWIM is now somehow confused acout the two patterns which have developed.

SWIM can imagine that the pyrex was too big, additionally tilted, and therefore there was no place to spread out for the crystals. That worked well in the left corner with enough solvent.

Any ideas?

Have a nice day. Cheers.

My guess is previously scratched glass surface.