Analisys
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MINERAL COMPOSITION
Min %
Max %
Phillipsite
25
30
Chabazite
5
10
Altered basaltic glass (Palagonite)
50
60
Calcite
5
6
Olivine and altered olivine%
5
6
Gypsum
-
1

 

CHEMICAL PROPERTIES
 
PH in 10% water slurry
7.3 – 7.8
Acid stability
Stable at very low pH of 2
Alkali stability
Stable at high pH of 14
Cation Exchange capacity
100 –150 meq/100 g
Cationic selectivity
K > NH4 > Na > Ca

 

CHEMICAL ANALYSIS
Wt. %
SiO2
42.0
Al2O3
14.0
K2O exchangeable (water insoluble)
1.5
MgO exchangeable (water insoluble)
4.8
CaO exchangeable (water insoluble)
4.5
P2O5 exchangeable (water insoluble)
0.2

 

SCREEN ANALYSIS
% passing
8 mesh
100
10 mesh
98
20 mesh
55
40 mesh
30
60 mesh
20
100 mesh
10
200 mesh
5
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