The Dangers of Manganese...

Good evening to all!  I was talking to a potter friend of mine a few days ago about manganese.  I have a manganese wash I was considering using on a few pieces.  She warned me to be very cognizant of the safety precautions I needed to take while handling it...At first I thought she might be over reacting slightly...but then I got my edition of the Clay Times magazine..and guess what it had in it?!?  A 2 page article on the danger and new OSHA standards regarding manganese!