MCF Mining Approvals IndexData as at 18 October 2026 · from Western Australian Government registers and open data
Western Australian mining project · Under Development
Comet / Valiant
Comet / Valiant is a Western Australian mining project (under development) in MINEDEX, owned by Valiant Gold Limited 100%; Big Bell Gold Operations Pty Ltd; Westgold Resources Limited, on 4 current tenements held by VALIANT GOLD LIMITED. Commodities: Gold, Silver.
- MINEDEX project
- J07167
- Stage
- Under Development
- Owners (MINEDEX)
- Valiant Gold Limited 100%; Big Bell Gold Operations Pty Ltd; Westgold Resources Limited
- Tenement holders
- VALIANT GOLD LIMITED
- Parent groups
- Valiant Gold
- Commodities
- Gold, Silver
- Rehabilitation liability
- Its rehabilitation liability is in the MCF Mining Index (subscribers): the Mining Rehabilitation Fund estimate, its trend since 2014, company provisions and closure-plan costs
Resources and reserves
| Commodity | Resources | Reserves | Latest estimate |
|---|---|---|---|
| Gold | 4.38 Mt at 2.37 g/t, 333 koz contained | — | 15 December 2025 |
Current MINEDEX estimates over all the project's sites; resources may include reserves. MINEDEX (DMPE), CC BY 4.0.
Production recorded in MINEDEX
| Commodity | Latest year | That year | All recorded |
|---|---|---|---|
| Gold | 1992 | 13 koz | 69 koz |
Historical: the bulk extract's production records end in 2002.
Mine closure plans
| Site | Operator | Latest plan approved | Plan (PDF on GeoDocs) | Closure year |
|---|---|---|---|---|
| Comet Project - A | WESTGOLD RESOURCES Limited | 30 October 2019 | Comet Project - Mine Closure Plan - August 2019 - Version A Revision 1 - J00017 | |
| MURCHISON OPERATIONS - TUCKABIANNA PROJECTS - MINERAL FIELD 20 | Silver Lake Resources Limited | 12 July 2017 | MURCHISON OPERATIONS - MINE CLOSURE PLAN - TUCKABIANNA PROJECTS - MINERAL FIELD 20 - FEBRU | |
| COMET PROJECT - METALS X GROUP | METALS X Limited | 19 December 2016 | MINE CLOSURE PLAN COMET PROJECT - METALS X GROUP - |
Tenements
| Tenement | Holder | Status | Expires | Commodities | Hectares |
|---|---|---|---|---|---|
| M 21/8 Mining lease | VALIANT GOLD LIMITED | Granted | 15 May 2028 | Gold, Silver | 48 |
| M 21/72 Mining lease | VALIANT GOLD LIMITED | Granted | 1 September 2033 | Gold, Silver | 743 |
| L 21/17 Miscellaneous licence | VALIANT GOLD LIMITED | Granted | 22 January 2033 | Gold, Silver | 65 |
| L 21/20 Miscellaneous licence | VALIANT GOLD LIMITED | Granted | 22 May 2038 | Gold, Silver | 5 |