Mount McClure Gold Mine, Bronzewing Goldfield (Mount McClure), Leonora Shire, Western Australia, Australiai
| Regional Level Types | |
|---|---|
| Mount McClure Gold Mine | Mine |
| Bronzewing Goldfield (Mount McClure) | Ore Field |
| Leonora Shire | Shire |
| Western Australia | State |
| Australia | Country |
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Latitude & Longitude (WGS84):
27° 25' 11'' South , 120° 56' 17'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
The Mount McClure Gold Mine is 14 kilometres south-west of the Bronzewing mine. The deposit was discovered between 1987 to 1990, and production occurred 1992 to 2001. There are four north-south trending pits. The southern most pit is called Calista, co-joined to Cockburn to the north. Immediately further north are the Lotus pits.
The mine is along a major north north-west shear zone called the Lotus Fault. The fault consists of several 'step-over' faults following the rock units in the greenstone sequence. It is hosted in an overturned ultramafic basalt, tholeiitic basalt and basaltic tuff and lava, with interbedded sulphidic cherty tuff and some clastic sedimentary units.
In the south-west part of the Cockburn deposit, high grade gold is associated with a massive sulphide-chert horizon, and within metakomatiite. In the north-east part of the deposit gold is found in metamorphosed dolerite and felsic rocks. At Cockburn the gold is associated with a stockwork of irregular quartz-carbonate-chlorite veins. Bismuth minerals, galena, molybdenite and scheelite are also in the veins with the gold.
At neighbouring Calista the source states gold is found in sulphide rich overturned, and steep westerly dipping rocks. These are hosted by green tremolite-chlorite-talc-carbonate schist after peridotic komatiite.
Beyond this the host rocks are the same as Cockburn. The regolith (which is probably similar at Cockburn), is 5 to 20 metres of laterite cover of sandy soil, silicified sandy colluvium and gravelly colluvium. Then a 40 to 50 metre thick saprolite zone before the fresh rock. There is a sulphide gossan layer through the saprolite.
At Lotus the gold is found in dolerite, mafic and felsic rocks. Gold is hosted in quartz-carbonate-chlorite veins which are tightly folded, but sub-parallel to the foliation.
In all the deposits are zones of epidote veins accompanied by pervasive hematite alteration in all rock types, and is un-related to the gold mineralisation. Late stage quartz-calcite-chlorite-sulphide veins are associated with strong carbonate-chlorite alteration.
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Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
11 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
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Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Bismuth Formula: Bi Reference: Liu, S.F. et al (2002), Geology of the Sir Samuel 1:250 000 Sheet Area Western Australia, Record, Geoscience Australia, Commonwealth of Australia, 2002 |
| ⓘ Calcite Formula: CaCO3 Reference: Liu, S.F. et al (2002), Geology of the Sir Samuel 1:250 000 Sheet Area Western Australia, Record, Geoscience Australia, Commonwealth of Australia, 2002 |
| ⓘ 'Chlorite Group' Reference: Liu, S.F. et al (2002), Geology of the Sir Samuel 1:250 000 Sheet Area Western Australia, Record, Geoscience Australia, Commonwealth of Australia, 2002 |
| ⓘ Epidote Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) Reference: Liu, S.F. et al (2002), Geology of the Sir Samuel 1:250 000 Sheet Area Western Australia, Record, Geoscience Australia, Commonwealth of Australia, 2002 |
| ⓘ Galena Formula: PbS Reference: Liu, S.F. et al (2002), Geology of the Sir Samuel 1:250 000 Sheet Area Western Australia, Record, Geoscience Australia, Commonwealth of Australia, 2002 |
| ⓘ Gold Formula: Au Reference: Liu, S.F. et al (2002), Geology of the Sir Samuel 1:250 000 Sheet Area Western Australia, Record, Geoscience Australia, Commonwealth of Australia, 2002 |
| ⓘ Hematite Formula: Fe2O3 Reference: Liu, S.F. et al (2002), Geology of the Sir Samuel 1:250 000 Sheet Area Western Australia, Record, Geoscience Australia, Commonwealth of Australia, 2002 |
| ⓘ Molybdenite Formula: MoS2 Reference: Liu, S.F. et al (2002), Geology of the Sir Samuel 1:250 000 Sheet Area Western Australia, Record, Geoscience Australia, Commonwealth of Australia, 2002 |
| ⓘ Quartz Formula: SiO2 Reference: Liu, S.F. et al (2002), Geology of the Sir Samuel 1:250 000 Sheet Area Western Australia, Record, Geoscience Australia, Commonwealth of Australia, 2002 |
| ⓘ Scheelite Formula: Ca(WO4) Reference: Liu, S.F. et al (2002), Geology of the Sir Samuel 1:250 000 Sheet Area Western Australia, Record, Geoscience Australia, Commonwealth of Australia, 2002 |
| ⓘ Talc Formula: Mg3Si4O10(OH)2 Reference: Anand, R.R., Williamson, A. (2003), Calista Gold Deposit Mount McClure Mining District Western Australia, CRC LEME, 2003 |
| ⓘ Tremolite Formula: ◻{Ca2}{Mg5}(Si8O22)(OH)2 Reference: Anand, R.R., Williamson, A. (2003), Calista Gold Deposit Mount McClure Mining District Western Australia, CRC LEME, 2003 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Bismuth | 1.CA.05 | Bi |
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 9 - Silicates | |||
| ⓘ | Epidote | 9.BG.05a | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| ⓘ | Tremolite | 9.DE.10 | ◻{Ca2}{Mg5}(Si8O22)(OH)2 |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| H | ⓘ Tremolite | ◻{Ca2}{Mg5}(Si8O22)(OH)2 |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Tremolite | ◻{Ca2}{Mg5}(Si8O22)(OH)2 |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Tremolite | ◻{Ca2}{Mg5}(Si8O22)(OH)2 |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Si | ⓘ Tremolite | ◻{Ca2}{Mg5}(Si8O22)(OH)2 |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Molybdenite | MoS2 |
| Ca | Calcium | |
| Ca | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Ca | ⓘ Tremolite | ◻{Ca2}{Mg5}(Si8O22)(OH)2 |
| Fe | Iron | |
| Fe | ⓘ Epidote | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Bi | Bismuth | |
| Bi | ⓘ Bismuth | Bi |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Lui, S.F., Champion, D.C., Cassidy, K.F., (2002), Geology of the Sir Samuel 1:250 000 Sheet Area Western Australia, Record, Geoscience Australia, Commonwealth of Australia, 2002.
Anand, R.R., Williamson, A. (2003), Calista Gold Deposit Mount McClure Mining District Western Australia, CRC LEME, 2003
Other Regions, Features and Areas containing this locality
Australia
- Western Australia
- West Australian ElementCraton
- Yilgarn CratonCraton
Australian PlateTectonic Plate
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Mount McClure Gold Mine, Bronzewing Goldfield, Leonora Shire, Western Australia, Australia