Alto do Giz pegmatite, Equador, Borborema mineral province, Rio Grande do Norte, Northeast Region, Brazil

The Alto do Giz Be-Ta-Li pegmatite is mined for tantalum.
It is located 2 km South of the road connecting the towns of Equador and Parelhas. Produced 300 kg of simpsonite in 1943.

Ref.:
- Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Nb–Ta–(Ti–Sn) oxide mineral chemistry as tracer of rare element granitic pegmatite fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita 43, 207-228.