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Gurkha Mine (Alma mine), Northampton, Northampton Shire, Western Australia, Australiai
| Regional Level Types | |
|---|---|
| Gurkha Mine (Alma mine) | Mine |
| Northampton | - not defined - |
| Northampton Shire | Shire |
| Western Australia | State |
| Australia | Country |
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Latitude & Longitude (WGS84):
28° 15' 17'' South , 114° 36' 55'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Northampton | 1,043 (2014) | 10.8km |
| Ogilvie | 112 (2018) | 11.8km |
| Isseka | 310 (2018) | 20.9km |
| Horrocks | 136 (2018) | 22.7km |
| Naraling | 273 (2018) | 26.7km |
Locality: 8 km north of Northampton.
This un-marked mine is just west of the North West Coastal Highway, and two kilometres north east of the location of Alma, which is nothing more than a hall. The mine can be glimpsed from the road and is on private property. There are two collapsed shafts, rusting mining equipment, and some rubbish. It is closely associated with the Baddera Mine to the east, which processed the ore from Gurkha.
A shear zone 1.8 metres thick, dipping 60-70 degrees west is found in gneiss. Mining has extended 150 metres along the shear and to a depth of 75 metres. Said to contain lenses of solid galena, up to 0.6 metres thick in silica, and some barite, sphalerite, marcasite and pyrite. Ni values have also been reported.
The mine was active in 1899, then 1952-1961 producing 34 500 tonnes of lead, and 18 600 g of silver.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Galena Formula: PbS |
| ⓘ Marcasite Formula: FeS2 |
| ⓘ Pentlandite ? Formula: (NixFey)Σ9S8 Description: Blockley, indicates that "A specimen of pyrite and marcasite assayed 0.54
per cent nickel, suggesting the presence of pentlandite". |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pentlandite ? | 2.BB.15 | (NixFey)Σ9S8 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Pentlandite | (NixFey)Σ9S8 |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Pentlandite | (NixFey)Σ9S8 |
| Fe | ⓘ Pyrite | FeS2 |
| Ni | Nickel | |
| Ni | ⓘ Pentlandite | (NixFey)Σ9S8 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
Australia
- Western Australia
- Pinjarra OrogenOrogen
- Northampton ProvinceGeologic Province
- Pinjarra OrogenOrogen
Australian PlateTectonic Plate
- Darling OrogenOrogenic Belt
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Gurkha Mine, Northampton, Northampton Shire, Western Australia, Australia