Selenite bowls are a must have energy cleansing tool.
These moon shaped bowls are just stunning and can hold your Essentials Crystal Kit (shop the kit) tumble stones for cleansing.
 
Selenite is a healing and cleansing crystal used to dispell negative energy whilst bringing protection and good luck.  Use your selenite bowl in your home to cleanse and charge your crystals.
 
To use, place your crystals, tumbled stones or jewellery in the selenite bowl and leave overnight to rid your items of negative energy residue.  Selenite is also great at amplifying the energy of anything placed upon it. Also, it is self cleaning...bonus! 
Each selenite bowl is unique with natural variations in the stone.