"Boden" wrote in message
...

Oxalic acid is somewhat toxic. However, that is a matter of how much you
ingest. Oxalic acid is found in small quantities in green, leafy
vegetables like spinach. It's also the precursor of the most common
kidney stones (calcium oxalate.)

You are correct sir! The amount you could ingest by touching it and
then accidentally putting your fingers to your mouth is significantly
greater than what you would ingest from green, leafy vegetables. The bigger
issue is actually sneezing. You haven't really sneezed until you've gotten
even a little of the dust in your nose.

Good Luck.