Lithology      Rhyolite
Sample#        AP-981-175
Chemistry
SiO2           69.79
Al2O3          19.08
Fe             1.97
CaO            0.10
TiO2           0.34
MnO            0.01
K2O            4.89
MgO            0.17
Na2O           0.35
P2O5           0.09
PPC            3.30
X-Ray Diffraction
               Quartz
               Mica
