Obsidian stimulates personal development by providing (self) insight. it brings out the truth, the core or cause of things and emotions. The stone reduces fear, blockages, traumas and limiting behavior and thinking patterns. Obsidian absorbs negative energy from the environment such as radiation. It sharpens the senses.
Howlite has a calming effect and enhances positive properties. The stone helps the wearer to control anger and anger and to be less critical. It promotes ambition but also patience, strengthens memory and makes you eager to learn. The stone has a positive effect on sleeping problems.