1. Crystals and gemstones possesses health benefits for the mind and body.

2. Water can be harmful to some gemstones such as below :

    - Pyrite : When combined with water it can produce sulfuric acid that can                   cause skin burns and irritation.

    - Labradorite, Calcite, Halite & Selenite : It will dissolve in the water

    - Hematite : Can rust

    - Turquoise : It will make it fade

    - Obsidian : Can break from extreme liquid temperatures 

    - Malachite : Releases toxic fumes when it gets moist