 |
| crystals: 222 phrases in 21 subjects |
| Agriculture | 2 |
| Chemistry | 37 |
| Communications | 10 |
| Earth sciences | 25 |
| Electronics | 53 |
| Environment | 1 |
| General | 4 |
| Health care | 2 |
| Industry | 5 |
| Information technology | 6 |
| Life sciences | 8 |
| Materials science | 1 |
| Mechanic engineering | 1 |
| Medical | 27 |
| Metallurgy | 13 |
| Microsoft | 1 |
| Natural resourses and wildlife conservation | 2 |
| Natural sciences | 14 |
| Physical sciences | 2 |
| Technology | 7 |
| Transport | 1 |