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Gypsum Specifications

The following analysis is for gypsum from Lake Cowcowing, Wyalkatchem.

 

 

Chemical Analysis:
Pure Gypsum:
97%
Calcium:
23%
Sulphur:
18%
Si02:
2.5%
CaC03:
0.2%
Fe2O3:
0.1%
NaCl:
0.2%
Cadmium:
<1.25ppm
Mercury:
1.175ppm
Lead:
<2.5ppm

 


Particle Size:
0.000 - 0.150mm
4.9%
0.150 - 0.300mm
31.0%
0.300 - 0.600mm
49.2%
0.600 - 1.000mm
12.9%
>1.000mm
2.0%

 

 

Screening:
Grizzly
No lumps over 5cm
Fine
No lumps over 1cm