Goldstone is said to be the stone of ambition, vitality & drive.  
 
It builds energy, courage and a positive attitude.  Increases drive and confidence and a gently uplifts your soul.  Reduces tension and helps with aching joints, bones and circulation.
 
Goldstone is actually a man-made stone.  Its sparkle is due to cobalt or manganese in blue Goldstone, and flecks of copper in gold Goldstone.