56 Shades of Slate

I didn’t expect to learn so much about slate on this trip, but the topic keeps coming up. In Tallinn, our guide told us there are 56 layers of slate here and that each one has a name.

The best stone masons not only know the name of each layer, but the best uses for it. Some are better for interiors, while others are better for siding, and so forth.Read more