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Wittenoom Gorge Mine, Wittenoom Gorge, Wittenoom, Ashburton Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 22° 19' 60'' South , 118° 19' 60'' East
Latitude & Longitude (decimal): -22.33333,118.33333

This abandoned asbestos mine is in the Hamersley Ranges (part of the Pilbara region) and is situated approx. 180 miles south of Port Hedland, and 70km NE of Tom Price.

This infamous mine has caused the deaths of hundreds of people. The Asbestos Diseases Society of Australia Inc describes it as the greatest industrial disaster in Australia. At Wittenoom thousands of people were exposed to levels of blue asbestos a thousand times higher than regulated at the time.

The Western Australian Mines Department was aware of asbestos at Wittenoom Gorge since 1917. It wasn't until the 1930's that mining for the mineral started in the area. Lang Hancock began mining crocidolite (blue asbestos) in nearby Yampire Gorge in 1937. He was to later develop the Pilbara's iron ore mines, and become one of Western Australia's major mining magnates. By 1940, 364 tonnes of asbestos had been taken from the hillside, packed into sacks in a shed, then taken by horse 240 kilometres north to Port Samson. This mine closed shortly after, and the same year Hancock opened the Wittenoom Mine.

The Wittenoom Mine produced 161 000 tonnes of asbestos during its operating life to 1966. In 1943, CSR Ltd purchased the mine. Working conditions at the mine were nothing short of appalling. Men crawled around in the dark in several stopes gouging out crocidolite, with no ventilation. In the mill, the ore was crushed by a dry process, causing so much dust (asbestos fibres) that floodlights were used in the middle of the day.

Health concerns were raised by government health officials as early as 1944. These were to continue on a regular basis with little government action. CSR was informed on a number of occasions, but showed a disregard to these safety concerns. In 1948 a government health officer, Dr Eric Saint, wrote to the mine managers stating the mine would produce the greatest number of asbestosis cases the world will see.

The inhalation of asbestos fibres even in small amounts can cause asbestosis, lung cancer, pleural plaques, and mesothelioma. It is estimated by 2020, there will be 700 deaths as a result of the mine. Not only are mine workers at risk, but the tailings were used as landfill at the town of Wittenoom. It is estimated 20 000 people have been exposed both at the mine, mill and town to the fibres.

The mine closed in 1966, but not due to safety concerns, but rather because it was losing money. By the time of closure it was $2.5 million (Aust) in debt.

CSR admitted they had done no geological study of the site. There has been little point since, as asbestos is now banned in Australia, and the mine will never re-open. Some crocidolite specimens are found in collections from the mine. These should be kept in sealed containers, and handling should be avoided.

A question mark has been placed against tiger iron and tiger eye specimens labelled Wittenoom. Local mineral dealers mine most of thesis material from Marra Mamba, north west of Tom Price, and the Ord Range near Port Hedland, but it is also found in a number of other spots in the Pilbara, including at Wittenoom (Geert Buters, pers. comm.).

The site has been listed in the past as Wittenoon which is incorrect spelling.

Mineral List

12 valid minerals.

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

2300 - 2500 Ma
Brockman Iron Formation

Age: Siderian (2300 - 2500 Ma)

Stratigraphic Name: Brockman Iron Formation

Description: Banded iron-formation, chert, mudstone and siltstone.

Comments: sedimentary non-carbonate chemical or biochemical; argillaceous detrital sediment; synthesis of multiple published descriptions

Lithology: Sedimentary non-carbonate chemical or biochemical; argillaceous detrital sediment

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]

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

This page contains all mineral locality references listed on 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 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.


Simpson, Minerals of Western Australia Vol 3 p 491.

Grubb, P. L. C. (1971): Silicates and their paragenesis in the Brockman Iron Formation of Wittenoom gorge, Western Australia. Economic Geology, 66(2), 281-292.

External Links

Type Wittenoom Mine' into an internet search field for many more sites.

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