| 
 | 
 | 物相 | % | 晶系 | 空间群 | No. | PDF No. | Z | a b c | |
| Mg88Y12 | 未吸氢 | Mg24Y5 | 75.9 | 立方 | I43m | 217 | 31-0817 | 2 | 11.204 | 
 | 
| Mg | 30.1 | 六方 | P63/mmc | 194 | 35-0821 | 2 | 3.2093 | 5.2112 | ||
| 吸氢后 | YH2 | 70% | 立方 | Fm-3m | 225 | 12-0388 | 4 | 5.2077 | 
 | |
| MgH2 | 
 | 四方 | P42/mnm | 136 | 12-697 | 2 | 4.517 | 3.0205 | ||
| YH3 | 
 | 六方 | P       | 165 | 12-0385 | 6 | 6.358 | 6.62 | ||