Alto dos Quintos Mine (Quintos pegmatite), Parelhas, Borborema mineral province, Rio Grande do Norte, Northeast Region, Brazil

Pegmatite in Equador formation quartzite. Known for its "Paraiba tourmaline" (cuprian elbaite).
Located 9 km south of the city of Parelhas.

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.
- http://www.sbgeo.org.br/572.html