I wetted it and worked it with my hands and kept repeating this until it was malleable again. It took a long time and there were some large crystals of salt in the clay that I picked out and discarded. It took about 10 minuted for it to become usable again.
Yes, use epoxy.
It will be rock hard.
Add water to it.
With superglue
Yes, certain types of clay can dissolve in water. These types of clays are not fired, non oil based clays, but natural and air dried clays.
Dried clay
A dried clay cannot be classified as a rock
nope, its made up of plasticine (which is non-toxic)
Dried clay
Yes, you can use acrylics on clay after the clay has been dried.
Yes, use epoxy.
It will be rock hard.
Add water to it.
no.
desert gravel is just dried clay
With superglue
sun dried bricks