Little Guilin and the Former Granite Quarries of Singapore
#0183;#32;According to Singapore''s geological map, the island''s strongest rock formation is found at the Gombak Norite, where its rock is tested to be more than ten times stronger than concrete. During its heydays, there were nine quarries operated at Gombak Norite. The Bukit Tim granite formation, on the other hand, covers an area of 200