Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Six Mile Ni deposit, Yakabindie Station (Kathleen), Leonora Shire, Western Australia, Australia

This page is currently not sponsored. Click here to sponsor this page.
Lock Map
Latitude & Longitude (WGS84): 27° 25' 19'' South , 120° 34' 9'' East
Latitude & Longitude (decimal): -27.42222,120.56944
GeoHash:G#: qejezxgvz
Locality type:Deposit
Köppen climate type:BWh : Hot deserts climate

Located 7 km south south east of Mount Falconer.

40 kilometres south of the Mt Keith Mine, between Mt Keith and Leinster, east of the Goldfields Highway. Dominion Mining was planning to start an open pit here in the late 1980's, however it was opposed by local indigenous groups due to the likely destruction of sacred sites. The Yakabindie nickel prospects are now (2013) part of BHP Billiton's Mt Keith operations, but no mining has taken place.

The Six Mile Deposit is the largest of several nickel prospects in the area, with a relatively low grade Ni, and complex geology.

The Six Mile lens is south plunging, dips almost vertically west, and shows nickel grades at 0.6% and copper at 0.01%. Its western contact is conformable with the overlying westerly dipping meta-sediments, while the eastern contact is partly intrusive and partly faulted. Supergene alteration occurs to 150 metres, and the oxidised zone is 30 to 80 metres thick.

The Six Mile Deposit lens is 1400 x 200 metres as a north-south elongated serpentinised dunite-olivine core, surrounded by a further 100 metre wide envelope.

The dunite-olivinite core hosts most of the mineralisation, and has almost completely been serpentinized to lizardite and antigorite, with only minor fresh olivine left. There are also in this, zoned chromite grains rimmed with magnetite. There is a zone 50 to 100 metres wide running the full length of the dunite core and into the peridotite rocks to the north of pentlandite and pyrrhotite, with minor pyrite and chalcopyrite, interstitial to the olivine pseudomorphs. Where the sulphides are poorly developed, millerite, heazlewoodite and godlevskite is found.

Around the lens is an envelope containing lizardite or antigorite, with minor brucite, tremolite, talc, magnesite, and chromite. There is also a narrow, 850 x 25 metre, zone of mineralisation in the western part of the envelope, containing pentlandite and pyyrhotite, with minor niccolite, maucherite, cobaltite, and pyrite, all mainly in carbonate veinlets forming networks in the southern portion, and ragged blebs of pentlandite and pyrrhotite in peridotite in the northern portion.

The deposit is in the Agnew-Wiluna Greenstone Belt. Six Mile Deposit is at the northern end of a series of linked Ni pods, such as Goliath North and Sheba amongst others. The sequence of rocks units at Six Mile from the highest is as follows:
1. Jones Creek Conglomerate of granitoid/feldspar conglomerate, mafic conglomerate, and ultramafic para-schist.
2. a sedimentary geologic break
3. Serp Hill meta-peridotite, 100 metres thick of serpentinised olivine peridotite with cumulus textures.
4. Cherty meta-sediment marker horizon a few metres thick.
5. A layered series 600-800 metres thick, of basaltitic to ultramafic flows and intrusive rocks, interlayered with meta-basalt and meta-gabbro to pyroxenite in the upper layers, and magnesian meta-basalt and spinifex textured ultramafic flows in the lower part.
6. Cherty meta-sediment marker horizon a few metres thick.
7. dunitic lenses 300-500 metres thick of serpentinized black dunite-olivine grading to dark green-grey olivine peridotite, with disseminated nickel sulphides in some of the lenses.
8. Volcanogenic meta-sediments, 500-700 metres thick, of poorly bedded quartz, actinolite, garnet, biotite, chlorite and andesine bearing rocks, some pyroclastic in origin, and some cherty and slaty horizons.
9. Cherty meta-sediment marker horizon a few metres thick.
10. Meta-basalt: up to 500 metres thick of tholeiitic meta-basalt with some lenses of magnesian meta-basalt near the top.

Mineral List

21 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

2500 - 4000 Ma

ID: 907211
ultramafic and minor mafic rocks 74475

Age: Archean (2500 - 4000 Ma)

Description: Tremolite-chlorite-talc amphibolite, metapyroxenite, pyroxenite, peridotite, serpentinite, ultramafic schists, komatiite, high-Mg basalt; also chalcedony, silica, jasper, silcrete, silica cap rock on ultramafic rocks

Comments: igneous ultramafic intrusive; meta-igneous ultramafic volcanic; synthesis of multiple published descriptions

Lithology: Igneous ultramafic intrusive; meta-igneous ultramafic volcanic

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: 3188638
Archean volcanic and intrusive 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.


Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Barnes, S.J.(2007): Cotectic Precipitation of Olivine and Sulfide Liquid from Komatiite Magma and the Origin of Komatiite Hosted Disseminated Nickel Sulfide Mineralisation at Mt Keith and Yakabindie Western Australia, Economic Geology (2007):102(2): 299-304
Marston, R.J.(1984): Nickel Mineralisation in Western Australia, Geological Survey of Western Australia (1984)

Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: May 24, 2019 12:03:18 Page generated: July 1, 2018 09:44:06
Go to top of page