Mineral:  Pyrophyllite Al2Si4010(OH)2

Sample No.:  pyroph.1

XRD Analysis:  Pure pyrophyllite.

Chemistry:  Rapid rock analysis by R. A. Robie and B. S. Hemingway 
yielded: 

SiO2 	66.32
Al2O3	28.27
Fe2O3	0.32
FeO	0.03
MgO 	0.07
Na2O	0.05
K2O	0.02
TiO2	 0.01
H2O	4.94
	_____
Total 	*100.03

*A second rapid rock analysis also detected 0.01 P2O5, 0.01 CO2, and 
0.03 F.
