What is the south american fruit called "caja"?

Question

I sell drink crystals, and have just received a new flavour from Brazil called Caja, with an accent over the last a in the portuguese. The spanish translation is given as Caja, as is the English. Its a small yellow fruit with a smooth skin of the texture of a plum.

Answer 1

http://www.fruteiro.it/scheda_frutto.asp?frutto=Caja&lin=2&col=F49E00&numfrutto=4

This tells a little about it.

nice! - margaretbl, Jan 6, 2011

Answer 2

cajazeira - looks like a type of mango doesn' it.