Clos du Caillou Châteauneuf-du-Pape Les Quartz 2021Clos du Caillou Chteauneuf du Pape Les Quartz the estate's cellar tier Chteauneuf, from old Grenache on the estate's quartz and galets parcels. Made at Clos du Caillou in Courthzon (Chteauneuf du Pape) by Sylvie Vacheron; the estate is certified organic and works 23 hectares of vines on the plateau above the village, with Grenache and white Rhne varieties across Chteauneuf and Ctes du Rhne cuves. Les Quartz sources old vine Grenache from the estate's