 |
| siliceous: 64 phrases in 15 subjects |
| Agriculture | 1 |
| Chemistry | 5 |
| Coal | 1 |
| Construction | 8 |
| Earth sciences | 4 |
| Environment | 2 |
| General | 4 |
| Geology | 2 |
| Life sciences | 1 |
| Medical | 4 |
| Metallurgy | 2 |
| Mining | 19 |
| Natural resourses and wildlife conservation | 2 |
| Natural sciences | 4 |
| Technology | 5 |