Brooch and Clip on Earring set made in factory Austria

Vintage made factory in Austria hues of blue and Aurora Borealis Rhinestone brooch and matching clip on earrings.

The brooch measures approximately 1 1/2 inches across, the earrings just over 1 inch long and 3/4 inch wide. They are in wonderful vintage condition.

I don't know what the base metal is, a magnet does not stick to them. All three pieces are marked, i couldn't get a good picture of the mark on the earring.