Delythg,
Welcome. So very sorry about the misfortune that brings you here.
We need more close up photos, on the white background, please, to better evaluate what you have and if they are cultured pearls or beads. It looks like some necklaces were taken apart.
Please give approx size of the pearls in mm. You can use the back side of a tape measure for this.
Also, more close ups of pearls and clasps in the 2nd photo. Clasps may have writing on the back; please photograph that also. Does the red box have any writing inside the lid?
Did these items get wet also? If so, did you rinse them off in warm water?