OH! What you need to get is lime paint. It feels chalky and can be tinted to earth-toned colors (i.e. brick or terra cotta) You don't need to seal it when you are done if you want it to continue to "chalk out" naturally. It's a beautiful and natural look, and it's not really "faux painting" because it's the "real McCoy".
Go to
www.Adicolor.com and look up a dealer in your area for the lime paint.
Amanda
www.artisticillusions.com