Historical information

Sample of metamorphic rock encountered by M.M.B.W. gang of tunnellers boring for a sewer drain through a geological fault-dyke along the southern boundary of Hubbard Park. The hole for 900 feet of 12.5 inch pipe took 6 months to bore from Oct-1979 to May-1980.

Physical description

Lump of black rock. +Additional Keywords: Lundy-Clarke, J.