Gee thanks, Joan, I’m not sure my spelling was good! I like Dave’s better.
To Fred’s non-exhaustive list of spaces of veneration I would add: blogsites. Do you allow that Dave?
Also love the cathedral of chaledony. In Missouri we do have grottoes of such. I wonder if the Shrine of the Black Madonna has a link? It is of drusy quartz, a wonderous material, thought to be pelagic (ouch! sorry Teju), but not Pelagian in origin.