Tuff
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8 locations recorded with this stone.
- 60, Great Portland StreetCladding and paving stones around building.
- Bachwen DolmenThe burial chamber is constructed from slabs of grey, glassy welded tuff.
- Capel Garmon Chambered TombA Cotswold-Severn type chambered tomb built from locally outcropping cleaved tuffs.
- Carlton HouseSiliceous porphyritic tuffs used as building stone. These lack the slaty cleavage of the slates.
- Eagles HotelMain building stone. Probably built from the local Silurian sandstones.
- Ebenezer ChapelThe walls of the Ebenezer Independent chapel are constructed of volcanic tuff.
- Penlan Fawr InnPosts supporting the porch and blocks in the rubble masonry. This is the oldest building in the town.
- Penprys Stones at Oriel Plas Glyn-y-WeddwThese 6th Century AD memorial stones are each made from columnar joints from the local Llanbedrog Tuffs. Th…