Yes, if you are eating it, you should talk to your doctor about PICA. It can cause intestinal blockages. There is also the obvious stuff...drop it on your foot, falling on your head, and so on.
White drywall is just normal everyday drywall.
A drywall dimpler is a drill bit used to countersink a drywall screw to the proper depth without breaking the drywall paper.
Drywall is VERY porous .
Drywall has absolutely NO granite in it.
No, you cannot get cut by drywall
yes drywall is an insulator
Yes, drywall is a light reflector.
No, pumice has nothing to do with drywall.
After drywall primer it can.
You prime it with drywall primer.
drywall can actually be saturated at least twice without harm or loss of strength. it is a common pratice to wet drywall to hang a radius wall. When the drywall dries it accually becomes harder. If the paper peals off of the drywall it needs to be replaced, otherwise it can be patched.
There are no metals in drywall or plaster.