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Sure. I've discovered if I heat with red light and shake vigorously for several minutes it dissolves relatively well; I thought it was more of a suspension than it was due to the presence of very small bubbles the shaking would create.
This picture is about 90 minutes after use/shaking; if it sits overnight the amount of precipitate is approximately double this--just enough to fully coat the bottom of the bottle. My apologies for the sub-par photo quality. I think you can still more or less clearly see a bit of a white ring around the bottom there.
Unrelated: these new bottles with the very thin stem built in are fantastic and make application much, much easier!
Thanks. This is indeed weird, as nobody else has reported a similar issue and I looked at the bulk container for the next batch (which is sitting in a refrigerator) and it has no precipitation whatsoever. I can send you a replacement bottle with your next order.