Cockeyed Bob Gold Mine, Randalls, Mount Monger Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australiai
| Regional Level Types | |
|---|---|
| Cockeyed Bob Gold Mine | Mine |
| Randalls | - not defined - |
| Mount Monger Goldfield | Ore Field |
| Kalgoorlie-Boulder Shire | Shire |
| Western Australia | State |
| Australia | Country |
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Latitude & Longitude (WGS84):
31° 5' 15'' South , 122° 10' 39'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Stoneville | 2,841 (2016) | 46.2km |
Mindat Locality ID:
271824
Long-form identifier:
mindat:1:2:271824:1
GUID (UUID V4):
05178294-46b3-4cc5-80ef-a49b41b4810e
Cockeyed Bob Pit is approximately 13 kilometres east of the Randalls processing plant, and one kilometre south of the Mount Monger Road. Maxwells, Rumble and the Santa mines are to the north-east.
The Cockeyed Bob mine is an open pit mined to 125 metres from the surface, and underground decline. The deposit is on the south-west limb of the banded iron formation mineralisation. Variable strikes, dips and grades are found. Average grades for 2015 is 5-6 g/t.
In January 2012, Integra Mining Limited began underground mining here, the following year the company merged with Silver Lake Resources. The mine was placed into care and maintenance in August 2012, with Silver Lake recommencing mining in June 2013.
Gold mineralisation is hosted by banded iron formations with gold in a series of south plunging quartz ladder vein arrays. There is abundant visible gold of a nuggetty nature, probably making ideal gold mineral specimens, but it is likely to all be destroyed in the mining process.
The high grade gold is found in a banded iron formation host, controlled by the intersection of vertical to sub-vertical BIF, and a series of south plunging quartz ladder vein arrays, the intersection of which plunges 30 degrees south.
Cockeyed Bob contains a Measured Resource of 116.4 Mt at 3.4 g/t yielding 12 700 ounces; an Indicated Resource of 600.7 Mt at 2.3 g/t yielding 44 300 ounces; and an Inferred Resource 1790.4 Mt at 2.8 g/t yielding 160 900 ounces of gold.
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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!
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Alphabetical List Tree DiagramGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | 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 | ⓘ Gold | Au |
Other Regions, Features and Areas containing this locality
Australia
- Western Australia
- West Australian ElementCraton
- Yilgarn CratonCraton
Australian PlateTectonic Plate
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