In message <48233e5c$0$2494$da0feed9@news.zen.co.uk>, Gareth 
 writes

>I've never found a source of black cardamom

http://www.twenga.co.uk/dir-Gastronomy,Spices-and-condiments,Cardamom

Looking more expensive than I paid for mine; clearly I bought a fragile 
packet (because I've decanted it into a recycled "Rajah" tin and 
forgotten where I bought it :-(  )

This is more like my price level!

http://www.spicesofindia.co.uk/acatalog/Indian-Food-TRS-Cardamom-Black-Moti-Elaichi.html

I've *seen* this packaging; so might be available somewhere near Chrisp 
Street, E14
-- 
Rex M F Smith