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Riverina Gold Mine, Riverina Station, Menzies Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 29° 44' 41'' South , 120° 33' 49'' East
Latitude & Longitude (decimal): -29.74485,120.56386
GeoHash:G#: qdtwz3pgt
Locality type:Mine
Köppen climate type:BWh : Hot deserts climate


The Riverina Gold Mine is immediately north of the Riverina Station homestead, and surrounded on the other three sides with the Riverina-Menzies Road, and its junction with the road to Lake Ballard to the north, and Davyhurst to the south. It is 80 kilometres west of Menzies.

This compact area contains shafts, mullock, small pits, trenches, old tanks and machinery, sheds and a 40 person mining camp.

The deposit was discovered in 1896, by W. Ferminger, and Tannion, working for a syndicate from Hay NSW, hence the Riverina name. The syndicate was floated into a company with 10 000 pounds capital. The company also purchased the British Lion lease, half a mile to the south.

A 10 head battery was erected. Thirty men were employed. W.T. Griffiths was appointed mine manager. C. Dicks of Charters Towers managed the battery. Early crushings achieved 15 dwt. 24 acres.

Three reefs cross the property. The main reef crosses the entire length of the property, striking north-south. An east-west fault cuts the reef off, and throws it 60 feet east. The reef gradually turns eastwards as it enters the Riverina South lease. Most mining was on the main reef of white quartz, 12 to 36 inches wide, in a schistose formation between it and the walls. The lode was 4 feet wide, dipping vertically and containing low grade gold outside of the veins. High grade stone was found near the Footwall and Hanging Wall. If was soft country to 160 feet down, then becomes hard and settled, at which point sulphides appear in a lode 1 to 3 feet wide. Fresh water comes in at 165 feet. The main shaft had levels at 160, 200, and 300 feet. By 1905, 19 500 tonnes of ore had been removed worth 46 000 pounds. Gold is found in mineralised shears in mafic-ultramafic rocks near the contact with basalt.

There are two other lines of reef on the property. One barren short north-east to south-west reef near the centre of the property. The third is a north-south striking reef near the western boundary. In 1902 it contained a shaft down to 80 feet of a reef 2 feet wide.

The company sold the lease to Dick Evans in 1903 for 1500 pounds. The battery was still on the lease, although described in the source as ancient and worn out. This was borne out and after much effort the lease was abandoned.

A company was floated called Riverina Blocks in 1926 with 25 000 pounds capital to acquire the Riverina and Riverina South, but little happened than un-watering shafts and sampling.

In the early 1930's mining entrepreneur Charles de Bernales controlled the mine, and did little with it. The Murchison Gold Development Company was floated in 1934, with the insane capital of 450 000 pounds to purchase the Emu mine at Lawlers and Riverina from de Bernales. After the vendors and promoters were paid off, only 140 000 pounds was left as working capital. The Riverina Gold Mines Ltd was spun off to operate the Riverina Mine. Other than development work, the erection of a battery, headframe, tramway and machinery, not a lot of mining was found, and the war years soon intervened.

The mine has been active at times since World War Two but more information is needed on this period. Between 1950 to 1980, 30 000 ounces came from the mine. A further minor 5000 ounces between 2000 to 2008.

One source states the small mining camp was erected in 1994, along with a treatment plant and underground development. In 2007 Riverina Resources Pty Ltd sold the leases to Monarch Gold Mining Company Ltd, however they appeared more interested in nickel exploration over the wider area.


Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


12 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Archean
2500 - 4000 Ma



ID: 765434
mafic extrusive rocks 74248

Age: Archean (2500 - 4000 Ma)

Description: Basalt, high-Mg basalt, minor mafic intrusive rocks; some andesite; agglomerate; mafic schist; amphibolite; dolerite; komatiitic basalt; carbonated basalt; basaltic andesite; mafic rock interleaved with minor granitic rock

Comments: igneous mafic volcanic; igneous mafic intrusive; synthesis of multiple published descriptions

Lithology: Igneous mafic volcanic; igneous mafic intrusive

Reference: Raymond, O.L., Liu, S., Gallagher, R., Zhang, W., Highet, L.M. Surface Geology of Australia 1:1 million scale dataset 2012 edition. Commonwealth of Australia (Geoscience Australia). [5]

Neoarchean - Mesoarchean
2500 - 3200 Ma



ID: 3187518
Archean volcanic rocks

Age: Archean (2500 - 3200 Ma)

Comments: Yilgarn Craton

Lithology: Greenstone belt; mafic-ultramafic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
The Sun newspaper (1910), A Sketch of Mulline, 27/02/1910
The West Australian newspaper (1926), Riverina Blocks, 04/08/1926
Kalgoorlie Miner newspaper (1934), Flotation in London. Murchison Gold Development, 14/07/1934
Western Argus newspaper (Kalgoorlie) (1935), Mulline Early Days, 08/10/1935
The West Australian newspaper (Perth) (1915), Mulline, 20/08/1915
Kalgoorlie Western Argus newspaper (1900), Mulline, 09/08/1900
The Riverina Grazier newspaper (Hay) (1902), The Riverina Gold Mine, 07/03/1902
The Argus newspaper (Melbourne) (1936), Riverina Gold Mine, 18/09/1936
Swan Gold Mining Ltd (2014), Investor Presentation, 19/06/2014
Kalgoorlie Western Argus newspaper (1903), Riverina Gold Mine, 01/12/1903 historic picture
Gibb Maitland, A (1903), The Geological Features and Mineral Resources of Mulline, Ularring, Mulwarrie and Davyhurst. North Coolgardie Goldfield, Bulletin 8, Geological Survey of Western Australia, 1903

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