| Cover | Aug. 05, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 05, 2022 |
| Entity File Number | 000-56323 |
| Entity Registrant Name | WESTERN MAGNESIUM CORPORATION |
| Entity Central Index Key | 0001801762 |
| Entity Tax Identification Number | 61-1934413 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 8180 Greensboro Drive |
| Entity Address, Address Line Two | Suite 720 |
| Entity Address, City or Town | McLean |
| Entity Address, State or Province | VA |
| Entity Address, Postal Zip Code | 22102 |
| City Area Code | (571) |
| Local Phone Number | 378-0762 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Entity Information, Former Legal or Registered Name | Not applicable. |
