AddressField on admin site

[dave-richards]

I have a contact model in my django project. I need to store the postal address. I would also like to store the geolocation. When I bring up the admin site, the address field acts odd. The field has both black and null = True. When I navigate to the field I click 'add' then enter the raw address into the field. When I save the model it is unclear whether the address was saved. When I examine the model in the admin site, nothing appears in the displayed field. I know the admin site is intended for low-level interactions with the db, but I can't seem to understand the rules. Is this documented somewhere?