| Condition | Single diffusion | Double diffusion |
| % of gel | 1.0 | 1.0 |
| Conc. of magnesium acetate | 1 M | 1 M |
| Conc. of KDP | 1 M | 1 M |
| Gel setting period | 24 hours | 24 hours |
| Gel aging | 48 hours | 48 hours |
| Period of growth | 60 days | 80 days |
| Temperature | Room temp. | Room temp. |
| Quality | Translucents | Opaque |
| Shape | Platy, prismatic, star and polycrystalline | Dumbbell, star and platy |