A 5
B 1
C 8
D 4
E0
F 4
G 2
H 2
I0
J0
K0
L 5
M 4
N 1
O0
P 4
Q 1
R 2
S 11
T 3
U0
V0
W 1
X0
Y0
Z0
GCC

Ground Calcium Carbonate.

Gypsum

The common name for the mineral consisting primarily of fully hydrated calcium sulfate, CaSO4 x 2H2O or calcium sulfate dihydrate. Gypsum occurs naturally in many areas, and is produced by some wet Flue Gas Desulfurization (FGD) processes.