Tumbles vary in shape and sizes from 2 - 3 cm - Man made quartz
 
Aura Quartz
 
Energy – Inspiration – Success 
 
Titanium Aura Quartz is a highly energizing crystal that will give life and energy to your career or financial pursuits. You will experience a surge of inspiration and determination to succeed with your plans.
This colour effect is not natural. The quartz is heated to 871 °C and then gold vapor is added to the chamber. The gold atoms fuse to the crystal's surface, which gives the crystal an iridescent metallic sheen.