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Sally Malay Ni Mine (Savannah), Mabel Downs Station, Halls Creek Shire, Western Australia, Australiai
Regional Level Types
Sally Malay Ni Mine (Savannah)Mine
Mabel Downs Station- not defined -
Halls Creek ShireShire
Western AustraliaState
AustraliaCountry

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Key
Lock Map
Latitude & Longitude (WGS84): 17° 21' 10'' South , 128° 1' 20'' East
Latitude & Longitude (decimal): -17.35278,128.02222
GeoHash:G#: qugj31nbt
Locality type:Mine
Köppen climate type:BSh : Hot semi-arid (steppe) climate


Located 3.7 km north of Dave Hill.

120 kilometres north of Halls Creek. The mine can be seen to the west from the Great Northern Highway. The prospect was purchased from Normandy Mining in 2000, by private company Mitchell River Group. After exploration of the site, they formed a publicly listed company called Sally Malay Mining, which developed an open pit and underground decline.

The mine opened for production in 2004.

The mine is a nickel deposit hosted by an extensive suite of mafic and ultamafic intrusives within the late Proterozoic Halls Creek Mobile Zone. The intrusives are rythmically layered olivine gabbro, trocolite, norite, with massive nickel sulphides in the basal zones. This ore is dominated by pyrrhotite, chalcopyrite and pentlandite as two steeply dipping lenses to the north, 3-40 metres thick at the bottom of the norite zone.

The footwall lens is at the base of the norite in contact with the footwall gneiss, however the hanging wall is up to 15 metres higher, although they merge to the west. There is also significant stringer and disseminated sulphide mineralisation between the lenses and into the hanging wall. The orebody strikes east-west, and showed originally as a well defined gossan 270 metres long on the surface. It terminates to the west by a fault and pinches out to the east. There is also a major fault 500 metres below the surface which dislocates the upper and lower orebodies by 150 metres.

A nearby satellite open pit called Copernicus is on care and maintenance.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

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


Mineral List


10 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

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
'Amphibolite'
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
Andalusite
Formula: Al2(SiO4)O
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
'Biotite'
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
Chalcopyrite
Formula: CuFeS2
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
'Fayalite-Forsterite Series'
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
'Feldspar Group'
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
'Feldspar Group var: Perthite'
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
'Gabbro'
Reference: http://www.portergeo.com.au/database/mineinfo.asp?mineid=mn957
'Gneiss'
Reference: http://www.portergeo.com.au/database/mineinfo.asp?mineid=mn957
'Granulite'
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
Microcline
Formula: K(AlSi3O8)
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
'commodity:Nickel'
Formula: Ni
Reference: From USGS MRDS database
'Norite'
Reference: http://www.portergeo.com.au/database/mineinfo.asp?mineid=mn957
'Pegmatite'
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
Pentlandite
Formula: (FexNiy)Σ9S8
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
'Peridotite'
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
Pyrrhotite
Formula: Fe7S8
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
Quartz
Formula: SiO2
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
Sillimanite
Formula: Al2(SiO4)O
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 
'Troctolite'
Reference: Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Chalcopyrite'2.CB.10aCuFeS2
'Pentlandite'2.BB.15(FexNiy)Σ9S8
'Pyrrhotite'2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
'Magnetite'4.BB.05Fe2+Fe3+2O4
'Quartz'4.DA.05SiO2
Group 9 - Silicates
'Almandine'9.AD.25Fe2+3Al2(SiO4)3
'Andalusite'9.AF.10Al2(SiO4)O
'Cordierite'9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
'Microcline'9.FA.30K(AlSi3O8)
'Sillimanite'9.AF.05Al2(SiO4)O
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Amphibolite'-
'Biotite'-
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'var: Perthite'-
'Gabbro'-
'Gneiss'-
'Granulite'-
'Norite'-
'Pegmatite'-
'Peridotite'-
'Troctolite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 9:8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Andalusite52.2.2b.1Al2(SiO4)O
Sillimanite52.2.2a.1Al2(SiO4)O
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Amphibolite'-
'Biotite'-
'Fayalite-Forsterite Series'-
'Feldspar Group'-
'var: Perthite'-
'Gabbro'-
'Gneiss'-
'Granulite'-
'Norite'-
'Pegmatite'-
'Peridotite'-
'Troctolite'-

List of minerals for each chemical element

OOxygen
O AlmandineFe32+Al2(SiO4)3
O AndalusiteAl2(SiO4)O
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O MagnetiteFe2+Fe23+O4
O MicroclineK(AlSi3O8)
O QuartzSiO2
O SillimaniteAl2(SiO4)O
MgMagnesium
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
AlAluminium
Al AlmandineFe32+Al2(SiO4)3
Al AndalusiteAl2(SiO4)O
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al MicroclineK(AlSi3O8)
Al SillimaniteAl2(SiO4)O
SiSilicon
Si AlmandineFe32+Al2(SiO4)3
Si AndalusiteAl2(SiO4)O
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si MicroclineK(AlSi3O8)
Si QuartzSiO2
Si SillimaniteAl2(SiO4)O
SSulfur
S ChalcopyriteCuFeS2
S Pentlandite(FexNiy)Σ9S8
S PyrrhotiteFe7S8
KPotassium
K MicroclineK(AlSi3O8)
FeIron
Fe AlmandineFe32+Al2(SiO4)3
Fe ChalcopyriteCuFeS2
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe MagnetiteFe2+Fe23+O4
Fe Pentlandite(FexNiy)Σ9S8
Fe PyrrhotiteFe7S8
NiNickel
Ni Pentlandite(FexNiy)Σ9S8
CuCopper
Cu ChalcopyriteCuFeS2

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

Statherian
1600 - 1800 Ma



ID: 3184810
Paleoproterozoic intrusive rocks

Age: Statherian (1600 - 1800 Ma)

Comments: Halls Creek Orogen

Lithology: Intrusive igneous 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]

Orosirian
1800 - 2050 Ma



ID: 867181
Tickalara Metamorphics - mafic granulites

Age: Orosirian (1800 - 2050 Ma)

Stratigraphic Name: Tickalara Metamorphics

Description: Metamorphosed diorite and amphibolite

Comments: igneous intermediate intrusive; meta-igneous mafic; synthesis of multiple published descriptions

Lithology: Igneous intermediate intrusive; meta-igneous mafic

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 Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Marston, R.J. (1984) Nickel Mineralization in Western Australia. Mineral Resources Bulletin 14, Geological Survey of Western Australia, 291p. 

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