Table 1: Chemical analysis of Rosendale cement.

SpeciesHistoric reference 1 [10]Historic reference 2 [11] Modern Rosendale [12]Contemporary RosendaleInsoluble residue, contemporary Rosendale

CaO27.833–6035.346.31.1
MgO12–2119.222.80.3
Al2O35.55.5–105.54.38.3
SiO227.827–3334.223.084.0
Fe2O34.32.61.81.5
TiO20.30.10.2
Na2O0.501.6
K2O2.21.82.9
Sum of constituents99.8100.199.9
Cementation index (CI)1.660.90