Acra Ni deposit, Kurnalpi Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australiai
| Regional Level Types | |
|---|---|
| Acra Ni deposit | Prospect |
| Kurnalpi Goldfield | Ore Field |
| Kalgoorlie-Boulder Shire | Shire |
| Western Australia | State |
| Australia | Country |
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Latitude & Longitude (WGS84):
30° 32' 5'' South , 122° 5' 5'' East
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Stoneville | 2,841 (2016) | 47.8km |
Mindat Locality ID:
122817
Long-form identifier:
mindat:1:2:122817:8
GUID (UUID V4):
175a204f-271f-4b02-a242-9e1a368914e6
Undeveloped nickel prospect located 64 km east north east of Kalgoorlie. Acra is a komatiite sulphide channel striking for 200 metres, being mainly disseminated nickel sulphides, and some veins/stringers of massive sulphides.
It was discovered during the 1967-1975 nickel boom, and there was renewed exploration interest from the 1980's.
Explored by Jones Mining NL 1968-1972, and Spargos 1971-1973.
Contains serpentinized olivine peridotite to polygonal textured metadunite, partly converted to magnesite at the margins, grading to the south-east into metapyroxenite, totalling 1370 metres long by up to 690 metres wide. Within this is irregular massive 1000 metres wide, less than 200 metres thick of magnetite, pyrite, pyrrhotite, chalcopyrite, millerite, siegenite, as disseminations and veinlets.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
9 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| β Anthophyllite Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
| β 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| β Chalcopyrite Formula: CuFeS2 |
| β 'Fayalite-Forsterite Series' |
| β Magnesite Formula: MgCO3 |
| β Magnetite Formula: Fe2+Fe3+2O4 |
| β Millerite Formula: NiS |
| β Pyrite Formula: FeS2 |
| β Pyrrhotite Formula: Fe1-xS |
| β Quartz Formula: SiO2 |
| β 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
| β Siegenite Formula: CoNi2S4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Pyrrhotite | 2.CC.10 | Fe1-xS |
| β | Millerite | 2.CC.20 | NiS |
| β | Siegenite | 2.DA.05 | CoNi2S4 |
| β | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| β | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| β | Magnesite | 5.AB.05 | MgCO3 |
| Group 9 - Silicates | |||
| β | Anthophyllite | 9.DD.05 | β»{Mg2}{Mg5}(Si8O22)(OH)2 |
| Unclassified | |||
| β | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| β | 'Fayalite-Forsterite Series' | - | |
| β | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Anthophyllite | ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
| H | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | β Serpentine Subgroup | D3[Si2O5](OH)4 |
| C | Carbon | |
| C | β Magnesite | MgCO3 |
| O | Oxygen | |
| O | β Anthophyllite | ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
| O | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | β Magnesite | MgCO3 |
| O | β Magnetite | Fe2+Fe23+O4 |
| O | β Quartz | SiO2 |
| O | β Serpentine Subgroup | D3[Si2O5](OH)4 |
| F | Fluorine | |
| F | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | Magnesium | |
| Mg | β Anthophyllite | ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
| Mg | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | β Magnesite | MgCO3 |
| Al | Aluminium | |
| Al | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | Silicon | |
| Si | β Anthophyllite | ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
| Si | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | β Quartz | SiO2 |
| Si | β Serpentine Subgroup | D3[Si2O5](OH)4 |
| S | Sulfur | |
| S | β Chalcopyrite | CuFeS2 |
| S | β Millerite | NiS |
| S | β Pyrite | FeS2 |
| S | β Pyrrhotite | Fe1-xS |
| S | β Siegenite | CoNi2S4 |
| K | Potassium | |
| K | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | Titanium | |
| Ti | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | Iron | |
| Fe | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Magnetite | Fe2+Fe23+O4 |
| Fe | β Pyrite | FeS2 |
| Fe | β Pyrrhotite | Fe1-xS |
| Co | Cobalt | |
| Co | β Siegenite | CoNi2S4 |
| Ni | Nickel | |
| Ni | β Millerite | NiS |
| Ni | β Siegenite | CoNi2S4 |
| Cu | Copper | |
| Cu | β Chalcopyrite | CuFeS2 |
Other Regions, Features and Areas containing this locality
Australia
- Western Australia
- West Australian ElementCraton
- Yilgarn CratonCraton
Australian PlateTectonic Plate
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References
