NGDB rock sample W188422

Element Measured value Units of measure Analytical method
H2O+ 1.4 percent bound water (unknown method)
H2O- 0.05 percent moisture (unknown method)
CO2 L0.01 percent by weight Titration
Na2O 2.6 percent by weight AA
MgO 2.8 percent by weight AA
Al2O3 10.6 percent by weight Colorimetry
SiO2 79.1 percent by weight Colorimetry
P2O5 0.09 percent by weight Colorimetry
K2O 0.93 percent by weight AA
CaO 0.48 percent by weight AA
TiO2 0.49 percent by weight Colorimetry
MnO L0.01 percent by weight Colorimetry
Fe2O3 0.18 percent by weight Colorimetry
FeO 0.4 percent by weight Titration