Yes, rock salt wont hurt them.
Depending the on the type of rock salt: frequently more than 95 %.
Rock salt and gypsum are not varieties of dolomite.
Yes, Sodium Chloride is found in Rock Salt.
No they eat other stuff
Grass
You can eat rock salt
Rock salt is no different than regular salt.
Rock salt and rock candy
Because is not recommended to eat dirty salt.
yes only salt
Salt is the only type of rock that humans can eat. Human digestive systems are not meant to break down other types of rocks.
Yes, eat as much as possible
rock salt, like what you put down for ice...? um...NO!
Your blood pressure might rise and you may get nauseous depending on how much you eat. The rock salt could also be contaminated with other minerals or bacteria. Not a good idea.
You can eat rock salt but it is in a crude form. It won't hurt you and is generally used to make ice cream and to melt ice on sidewalks.
Purified salt may not be safe to eat because it may have the bacteria of the rock salt on it still. To make it pure you should boil the bacteria off the salt after it has been purified.
Rock salt is not a rock...its just a salt that can be extracted from salty water especially from sea water.