How would you separate a mixture of zinc chloride and zinc sulfide

I would separate a mixture of zinc chloride and zinc sulfide by putting each into different cups, or bowls or plates.

I would put the mixture in water. The zinc chloride would dissolve in the water (see solubility rules), but zinc sulfide would not.

Then, just use filtration to separate the solution from the solid.

To get the zinc chloride back out, just evaporate the water. Done!