Decomposed granite can be found in nature and the impurities in the mother rock
can add colour to the blemishes.
We call this the Mother Rock
, said Qubec National Park Warden Marianne, pointing to an unremarkable hunk of granite.
A quarter of a kilogram, hewn from Mother Rock
70017 in 1972, was split into 1.
We came to a short hill, and after we had reached the top we saw a group of white farm buildings, built just off the road, in the mother rock
of the hill.
Then too you will be interested to know that there are many glacial boulders on the island and shore, of a granitic structure similar to the granite of Scotland, so it looks as if they were brought by the ice during the Glacial epoch from their mother rock
away off to the northwest in Scotland.