Description
This is a beautiful thumbnail size Blue Topaz from Mwami Hurungwe, Zimbabwe.
Crystal Dimensions:
1.5cm (0.5”) x 1.5cm (0.5”)
Weight:
1.8 grams
Topaz is a silicate mineral of aluminium and fluorine.
The chemical formula is
Al₂SiO₄(F, OH)₂
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