Lithology      Rhyolite
Sample#        AP-937-200
Chemistry
SiO2           76.24
Al2O3          12.72
Fe             0.86
CaO            0.10
TiO2           0.04
MnO            0.01
K2O            7.69
MgO            0.21
Na2O           0.85
P2O5           0.04
PPC            1.32
X-Ray Diffraction
               Quartz
               Potassium Feldspar, Plagioclase
               Mica
               Kaolinite
