Average size 3 cm x 3cm / 1.18 inch x 1.18 inch approx. 
 
The Bismuth crystal’s beautiful color happens when metal oxidizes from its exposure to the oxygen in the air. When iron oxidizes rust occurs with red-orange colored layers. When Bismuth oxidizes you can see a variety of colors like pink, purple, green, blue, and yellow.
 
Bismuth crystals aid in self-reflection, calms and soothes the mind, can help block electromagnetic radiation from computers, phones, and electronics, and introduces order and organization into chaotic situations and mindsets. Bismuth has been used as the stone of transformation and vibrates to the number 2.
 
Origin:  Australia