SCOTTISH SLATE

UF Ballachulish Slate
Scotch Slate
SN Collective term for the Scottish Slates including the Aberdeen/Baniff and Ballachulish/Easdale groups. Fine grained, varying in colour from brown to dark grey/blue. Geologically different from Lake District, Welsh and West Country groups of slate.
CL STONE
BT SLATE
RT FOREST STONE (LEICESTERSHIRE)