CaCO3 % Sample 19.2 1 18.7 1 21.3 1 16.5 1 17.3 1 22.4 1 18.7 2 14.3 2 20.2 2 17.6 2 19.3 2 16.1 2 12.5 3 14.3 3 8.7 3 11.4 3 9.5 3 16.5 3 20.3 4 22.5 4 17.6 4 18.4 4 15.9 4 19 4 19.9 5 24.3 5 17.6 5 20.2 5 18.4 5 19.1 5