Baal Gammon Mine, Mouramba Co., New South Wales, Australiai
| Regional Level Types | |
|---|---|
| Baal Gammon Mine | Mine (Abandoned) |
| Mouramba Co. | County |
| New South Wales | State |
| Australia | Country |
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Latitude & Longitude (WGS84):
31° 41' 18'' South , 146° 9' 10'' East
Latitude & Longitude (decimal):
Type:
Mine (Abandoned) - last checked 2026
Age:
419.2 ± 3.2 to 393.3 ± 1.2 Ma
Geologic Time:
Reference for age:
Gilligan, L.B., Byrnes, J.G. (1995) Metallogenic Study and Mineral Deposit Data Sheets: Cobar Metallogenic Map 1:250 000 (SH/55-14), Geological Survey of New South Wales, Sydney, 240 pages.
Köppen climate type:
A former underground and open cut copper, lead and zinc mine.
The Baal Gammon Copper Mining Company was formed in December 1906. The company immediately set about sinking a shaft at the site, and reports of developments continued until November 1907. The shaft reached a depth of 212 feet. At times it is stated that the reef dipped east, at other times north. It appears to be an ironstone lode rather than a quartz reef.
At the surface the lode was exposed as ironstone, gossan and quartz. At 15 feet from the surface copper carbonates (malachite, azurite?) and peacock ore (bornite, turgite?). Mineralised blue slate 165 feet. Gossan with green carbonate crystals (malachite?) and steel grey ore (tenorite, pyrite, sphalerite etc?). Near the bottom of the shaft masses of probably malachite veinlets were found. At 212 feet the reef had narrowed to 18 inches of dense ironstone with blue slate on the footwall, and copper carbonate stains on both walls.
Samples sent of picked stone gave trace gold, and average silver and copper.
The company was wound up in March 1909.
The Baal Gammon Copper Mining Company was formed in December 1906. The company immediately set about sinking a shaft at the site, and reports of developments continued until November 1907. The shaft reached a depth of 212 feet. At times it is stated that the reef dipped east, at other times north. It appears to be an ironstone lode rather than a quartz reef.
At the surface the lode was exposed as ironstone, gossan and quartz. At 15 feet from the surface copper carbonates (malachite, azurite?) and peacock ore (bornite, turgite?). Mineralised blue slate 165 feet. Gossan with green carbonate crystals (malachite?) and steel grey ore (tenorite, pyrite, sphalerite etc?). Near the bottom of the shaft masses of probably malachite veinlets were found. At 212 feet the reef had narrowed to 18 inches of dense ironstone with blue slate on the footwall, and copper carbonate stains on both walls.
Samples sent of picked stone gave trace gold, and average silver and copper.
The company was wound up in March 1909.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
7 valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ 'Limonite' |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
Other Regions, Features and Areas containing this locality
Australia
- Lachlan OrogenOrogen
- Central NSW - Omeo ProvinceGeologic Province
- New South Wales
Australian PlateTectonic Plate
- Lachlan Fold Belt
- Wagga-Omeo Metamorphic ComplexOrogenic Belt
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References
Leeson, B.; Bluck, R.G. (1975) Final Report on the exploration of E.L. No. 650, Meryula, Cobar, N.S.W. NSW Geological Survey Report GS1975/342, Mines Exploration Pty. Ltd. 82pp.
