There's also the Pif, a cot-cab franc blend, I believe, and l'Arpent rouge, a Pineau d'Aunis, not to mention their Sauvignon Blanc. I'm pretty sure there are others as well.
Raspberry and minerals with a chalky/limestone finish that I haven’t found in gamay from Beaujolais.
You've put the finger on exactly what I love about Touraine gamays -- the minerality, especially on the finish, that goes far beyond what I usually find in Beaujolais. Plus, they're cheaper.