In article ,
Adrian wrote:

A little off topic, but does anyone know what this is?

http://www.hidebehind.com/0C0ABF

(1 square is about 5mm)

I bought it at the local asian supermarket.


Nice! It looks a little distressed - bruised or even
mouldy. What's inside it?

How about Pitahaya or Rambutan or is it a sort of citrus?
Rough lemon, Jamberi?