GeoGraph - photograph every grid square

Adit entrance

The remains of an adit constructed in the early years of the 20th century with a view to extracting the silica-rich rhyolite rock for use as 'china stone', which was an additive for the production of high-quality porcelain ware. A common alternative was calcined flint, which was a pure silica. Fortunately, the activities caused great outrage, and the Town Council purchased the mineral rights to the mountain so that a recurrence was impossible.