"toxic and difficult to handle."
That's an understatment.
$orkplace has an instrument off the first Ariane 5 launch (the one which famously, didn't) that was dug up from 8 feet down in a french Guyanian swamp and then thoroughly cleaned to get rid of the mud. It got returned to assess how well built it was.
It's in a glass case because 20 years later it _still_ has enough trace hydrazine on it to be dangerous if touched.
Biting the hand that feeds IT
