Lithology      Rhyolite
Sample#        AP-961-149
Chemistry
SiO2           76.91
Al2O3          11.81
Fe             2.43
CaO            0.10
TiO2           0.17
MnO            0.02
K2O            0.10
MgO            0.24
Na2O           6.50
P2O5           0.02
PPC            1.75
X-Ray Diffraction
               Quartz
               Plagioclase
               Chlorite
               Mica
