Callanish is made of thin slabs of Lewisian gneiss, which ranks as one of the oldest rocks on the Earth's surface. The rock's inky layers make it a striking building material, in plentiful supply on the sea-cliffs a couple of miles to the west.
Tuesday, June 24, 2008
On the horizon, the megalithic construction at Callanish
Callanish is made of thin slabs of Lewisian gneiss, which ranks as one of the oldest rocks on the Earth's surface. The rock's inky layers make it a striking building material, in plentiful supply on the sea-cliffs a couple of miles to the west.
Callanish is made of thin slabs of Lewisian gneiss, which ranks as one of the oldest rocks on the Earth's surface. The rock's inky layers make it a striking building material, in plentiful supply on the sea-cliffs a couple of miles to the west.
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