From a professional point of view, I want to tell the landlord that crystal bracelets and jade bracelets can't be worn on one wrist! Not taboo, but both are high hardness jade. When they are in close contact, they will rub against each other, resulting in wear marks, which will affect the perception and reduce the value of jade.
3. Nothing else has any influence. Mutual wear will reduce the surface smoothness of jade bracelets and crystals. It is not recommended to wear it at the same time.