AA2A 'Plus' - New Materials

I've just come across a new material which I've never used before...Terracotta cast with iron is a modelling material akin to plaster. It sets in an hour or so and resembles a bisque fired terracotta, the iron content giving it a speckled like finish. I cast my 'sculptors digits' in the material as a test, apparently the iron content will go rusty with regular watering... I'm watering one of the digits to see what the results look like... 

Testing, Testing... Terracotta cast with iron.

Karen Thompson - Sculptors Digits.