Citrine

Citrine is a stone of abundance . Citrine is well known in crystal work as a success and prosperity stone to the point that it is called the "Success Stone." It is a powerful cleanser, regenerator and energizer. Citrine teaches how to manifest and attract wealth and prosperity, success and all good things in life. It is a happy stone and has the power to impart joy to all who behold it.

Citrine is a fabulous stone to use to combat negative energy of any kind by breaking them up and dissipating them. It is helpful to clear unwanted energies from the environment, whether it be home, office, car, or other space indoors or out. Citrine is also a stone that brings hope. Since citrine eliminates negative energies, it is good for protection in general and helps bring stability energetically.
Citrine also does not absorb any negative energies from its surroundings, and thus never needs energetic clearing. 
*Gemstones and crystals work on a supportive energetic level but are not a replacement for proper medical attention.