Nigeria
Plateau State
Near Jos

 

Falster and Simmons reported that rossmanite was found in both the Plateau state and in Oyo state. They presented the diagram below that combines compositions from both states.

Plateau
 



References:

Falster AU, Simmons WB (2019) Rubellite Chemistry. Mineral Monograph 20, 24-27.

 

 last updated 19-Oct-2019