It's a tasty spice that is served tableside in Mexico, especially with cut fruit like oranges or apples. It consists mainly of powdered chilis, lime and salt.
I found it in Publix here in North Florida- you can probably find it in any Mercado/bodega that specializes in Latin foods.
Listen to Uncle Jay - Try it... If you ask me, it's worthy of being this year's Sriracha- the next must-have for any self-respecting foodie.
TBG- ΜΟΛΩΝ ΛΑΒE