v3.26.3
Share-Based Payments - Schedule of Acquisition Consideration (Details) - Monte Carlo [Member]
 12 Months Ended
Jun. 30, 2026
AUD ($)
Jun. 30, 2025
Schedule of Acquisition Consideration [Line Items]    
Performance rights, Numbers 25,250,000 28,750,000
Performance rights, Expense $ 2,850,673  
Performance Rights [Member] | Class A [Member]    
Schedule of Acquisition Consideration [Line Items]    
Performance rights, Grant date Apr 5, 2023  
Performance rights, fair value per right 0.2  
Performance rights, Vesting condition and expiry Announcement of a JORC-compliant Indicated Resource of 3Mt THM; hurdle achieved July 10, 2025  
Performance rights, Numbers 10,000,000
Performance rights, Expense  
Performance Rights [Member] | Class B [Member]    
Schedule of Acquisition Consideration [Line Items]    
Performance rights, Grant date Apr 5, 2023  
Performance rights, fair value per right 0.2  
Performance rights, Vesting condition and expiry Announcement of a pre-feasibility study recommending proceeding; expiry June 30, 2027  
Performance rights, Numbers 5,000,000 5,000,000
Performance rights, Expense $ 58,947  
Performance Rights [Member] | Class C [Member]    
Schedule of Acquisition Consideration [Line Items]    
Performance rights, Grant date Apr 5, 2023  
Performance rights, fair value per right 0.2  
Performance rights, Vesting condition and expiry Announcement of the completion of a feasibility study recommending proceeding; expiry June 30, 2027  
Performance rights, Numbers 5,000,000 5,000,000
Performance rights, Expense $ 58,947  
Performance Rights [Member] | Class D [Member]    
Schedule of Acquisition Consideration [Line Items]    
Performance rights, Grant date Apr 5, 2023  
Performance rights, fair value per right 0.2  
Performance rights, Vesting condition and expiry Announcement of a decision to mine; expiry June 30, 2028  
Performance rights, Numbers 5,000,000 5,000,000
Performance rights, Expense $ 47,675  
Performance Rights [Member] | Class E [Member]    
Schedule of Acquisition Consideration [Line Items]    
Performance rights, Grant date Nov 7, 2024  
Performance rights, fair value per right 0.83  
Performance rights, Vesting condition and expiry Approval and issue of a mining licence for the Chilwa Critical Minerals Project; expiry November 30, 2028  
Performance rights, Numbers 3,250,000 3,750,000
Performance rights, Expense $ 577,683  
Performance Rights [Member] | Class F [Member]    
Schedule of Acquisition Consideration [Line Items]    
Performance rights, Grant date Nov 27, 2025  
Performance rights, fair value per right 0.935  
Performance rights, Vesting condition and expiry Announcement of a JORC (2012) TREO Mineral Resource by November 30, 2027 — 3,500,000 rights on an Indicated Resource of at least 35Mt at 1% TREO and 3,500,000 rights at 60Mt at 2% TREO; rights expire November 30, 2030  
Performance rights, Numbers 7,000,000
Performance rights, Expense $ 2,107,421