Parameter/Sample | 1 | 2 | 3 | 4 | 5 | 6 | |
WAC (%) | - | 6.25 | 6.30 | 8.14 | 8.20 | 5.35 | |
LS (%) | - | 1.70 | 1.40 | 1.25 | 1.25 | 1.60 | |
LOI (%) | - | 5.5 | 6.1 | 5.0 | 4.8 | 5.3 | |
Colour | Unfired | - | Light brown | Grey | Light brown | Light brown | Dark grey |
Fired | - | Dark brown | Brown | Dark brown | Dark brown | Dark brown |