The Flodden Field rock comes from a small town called
Branxton somewhere in Northumberland, England. Northumberland houses
many rocks within its borders. Underneath all of the northernmost county
of England lies a layer of slate. Also, there is pink andesite lava
and granite near and beneath Cheviot. In Rothbury there is a significant
mount of sandstone. There's also some limestone in the Northumberland
Trough, as well as some dolerite near Hadrian's Wall.
Slate, the most dominant rock in all of Northumberland,
is a metamorphic rock. Slate is rather dense rock with excellent cleavage.
Shale, a sedimemtary rock, is transformed into slate using heat and
pressure below the earth's surface. Slate is often used for blackboards
and roofing.
For more information about slate, click
here.