Chemical Analysis 
CaSO4 - 2(H2O)99.1%
Loss on Drying18.7%
Asless than 0.1 ppm
Fl11 ppm
Heavy Metalsless than 10. ppm
Seless than 0.5 ppm
Physical Analysis 
AppearancePowder 
ColorBright White
Plus 100 meshtrace
thru 325 mesh96.5%