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Lady Irene Gold Mine, Menzies, Menzies Shire, Western Australia, Australiai
| Regional Level Types | |
|---|---|
| Lady Irene Gold Mine | Mine |
| Menzies | - not defined - |
| Menzies Shire | Shire |
| Western Australia | State |
| Australia | Country |
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Latitude & Longitude (WGS84):
29° 37' 58'' South , 120° 57' 54'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
The Lady Irene Gold Mine is two small abandoned open pits, 9 kilometres north-west of Menzies, and 3 kilometres north of the Menzies-Sandstone Road.
The recent open pit production extracted 42 721 tonnes of ore at 4.77 g/t yielding 6552 ounces of gold. There is a remaining resource of 944 000 tonnes at 3.82 g/t yielding 11 610 ounces.
The deposit was discovered by Julia Mines Limited in 1998, and an open pit was developed in 2001.
The site contains two south plunging shoots on the contact between steep west dipping komatiite, and a high Mg basalt. This sheared contact is marked by a 1 to 5 metre thick quartz vein, with gold associated with the Footwall vein alteration.
The upper levels from the surface to 30 metres contains a high grade supergene zone 10 to 12 metres wide. Between 50 to 70 metres below the surface is a marked zone of gold depletion. Gold grades increase again below 80 metres, with the main ore shoot 80 metres in length and open at depth below 150 metres.
The two pits reach a depth of 36 metres, and ore was processed late 2002 at the Sons of Gwalia plant Leonora
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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
2 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Native Gold Formula: Au |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Regions, Features and Areas containing this locality
Australia
- Western Australia
- Kambalda Nickel Metallogenic ProvinceGeologic Province
- West Australian ElementCraton
- Yilgarn CratonCraton
Australian PlateTectonic Plate
- West Australian Craton
- Eastern Yilgarn CratonCraton
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