4 Sterling silver Pendants - mystic topaz, Opalite, Chrysalcola and Moonstone?

4 beautiful sterling silver pendants - I believe that mystic topaz could be vintage. Three out out of four are stamped 925. I can’t find a stamp for the Opalite but I have had it for a long time and I believe it is sterling. It has never lost its colour and does not stick to a magnet - too much jewelry so letting someone else love these as I once did.