They are recognized for their virtuesprotective, regenerating and soothing.
The shell can be used as a stone, for its own virtues (mother of pearl) or as an excellent support for the fumigation of your sage, your incense thanks to its small holes which let the smoke escape. Shepurifies places, stones and protects you.
Also deposit your stones, crystals and jewels there to recharge them.
To recharge it itself: morning sun, full moon, cluster of rock crystal or flower of life.