Goldstone Tumbled 3-4cm

Called the stone of ambition, goldstone is thought to assist in attaining goals.
Some consider goldstone to be a symbol of ingenuity, ambition, and drive.
It believed to reduce tension, revitalize the wearer and encourage a positive attitude.
Increases drive and confidence.
A gently uplifting stone, Goldstone promotes vitality. 
Brown goldstone is associated with the root chakra and the zodiac sign of Sagittarius. 
Another common name for this stone is aventurine glass.