Lithology      Dacite
Sample#        AP-961-198
Chemistry
SiO2           65.92
Al2O3          15.19
Fe             4.01
CaO            0.31
TiO2           0.50
MnO            0.06
K2O            6.01
MgO            2.93
Na2O           2.12
P2O5           0.10
PPC            2.85
X-Ray Diffraction
               Quartz
               Plagioclase, Potassium Feldspar
               Mica
               Chlorite
