I see each pendant has a different name: Earth, Fire, Ice, Lightning and so on. Could be that each is giving resistance against that element as it is on some alchemy stones. Earth Resistance, Ice resistance...

Hey,

thank you for your report! That happens because of missing localization. It will be appear with the next update.

best,
Comkra

They give "Strong against Fire" Ice, Darkness, etc.

Fixed!