Chemical Analysis 
CaSO499.0%
Insolubles.45%
Iron100. ppm max
Heavy Metals10. ppm max
Physical Properties 
Typical Particle Size+4 0 +/- 1
US stand mesh4-12 65 +/-10
 12-30 35 +/- 10
 -30 5 +/- 5
Guaranteed Size+4 1% retained Max
 -30 10% passing Max
Specific Gravity2.32
pH (10%)7.3
ColorWhite

Packing: 55 lb, 25Kg paper bags 40 bags/pallet

Origin: USA