Composition:

Petrographic Description:  None.

Microprobe Analysis:  None.

Chemical Analysis:  (analyzed by Robert J. Stern, Carnegie Geophysical 
Laboratory)
SiO2  -  53.3
CaO  10.05
TiO2  0.73
Na2O  3.04
Al2O3  19.5
K2O  1.18
Fe2O3  3.5
P2O5  0.20
FeO  6.07
MnO  0.18
MgO  2.87
TOTAL  100.62
