I love my pendulums and use them or at least 1-2 of them almost every day
I have one for angels, one for using while I do readings, one for fairies/elves, one for loved ones on the Other Side , one for animal totems and one for my spirit guides.
Each one is different in look and programming as not all go in the same direction for yes and no. My fairy one is a dragonfly pendant I wore the day I got married

Vicky your pendulum has a merlin or Lord of the Rings feel to it. Very old worldly charm on it.
Not all crystals work well with salt or sunlight so be sure to research your crystal before using either one on it.