Monday, September 2, 2013

The Rocks of Gabriola Island

The main rocks exposed on Gabriola Island are sandstone and shale. 


In the 1890's and early twentieth century sandstone blocks were cut from a quarry near Descanso Bay and shipped for architectural use in public buildings in Vancouver and Victoria.

In the early to mid 1930's millstones were also cut from the sandstones. A special saw was used to cut millstones that were 3.3 feet or more in diameter.  Each stone weighed several tonnes and was said to be worth $600.00 at that time.  These were used in the pulp and paper industry in the mills on the West Coast.

A few of these types of cut millstones can still be seen on the island today.  One section of the quarry with it's rows of circular holes is protected as a nature reserve now. 

Sandstone Mill Stone and Blade used to cut it


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