Serpentine - Smooth
It has protective properties and is known to guard against ill health, unwelcome magic and poisonous influences and creatures.
The stone can aid with stability and will balance mood swings. It is often used for peace and emotional cleansing. It’s a soothing stone to the emotions and is also known to help people deal with fear and adapt to changes.
The stone is handy in situations regarding peace; both bringing an end to inner turmoil, and in helping solve conflicts with other people. It aids communication, joy and love.
Serpentine is also used to attract money, and has no particular association with a chakra.