Blue Topaz, Mwami, Hurungwe, Zimbabwe

This is a beautiful thumbnail size Blue Topaz from Mwami Hurungwe, Zimbabwe.

Crystal Dimensions:

2cm (0.7”) x 2cm (0.7”)

Weight: 

6.8 grams  

Topaz is a silicate mineral of aluminium and fluorine.

The chemical formula is

Al₂SiO₄(F, OH)₂