Magnet Mine, Thames, Thames-Coromandel District, Waikato Region, New Zealandi
| Regional Level Types | |
|---|---|
| Magnet Mine | - not defined - |
| Thames | Town |
| Thames-Coromandel District | District |
| Waikato Region | Region |
| New Zealand | Country |
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Latitude & Longitude (WGS84):
37° 7' 9'' South , 175° 33' 16'' East
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Thames | 7,136 (2014) | 2.5km |
| Ngatea | 1,151 (2011) | 18.9km |
| Kerepehi | 537 (2011) | 20.2km |
| Tairua | 1,588 (2011) | 28.6km |
| Whangamata | 4,253 (2011) | 29.0km |
Historic gold mine.
Located near the head of Waiotahi Stream.
Epithermal veins in pyrophyllite-diaspore-dickite-kaolinite. Gold is associated with enargite, a copper arsenic sulphosalt.Free gold is occasionally seen. Within the hard white quartz is dark finely granular bands of sulphides. Vein fillings consist of high Au-Ag valued clays, the clay seam follows the Hanging Wall 150 feet or more. The reef is lenticular with a high percentage of sulphides and enargite as isolated grains, and 'beautiful' crystalline aggregates. Gold is frequently associated with the enargite in the clay seam, but no gold is associated with enargite in the quartz vein. Pyrite frequently recements crushed and disjointed veinstone. Barite coats quartz and sulphides in cavities.
The Magnet Gold Mining Company was found extending the low level tunnel in 1907, now a total of 1220 feet. Crushings were sent to the Waiotahi battery. To raise more capital the company was reconstructed in 1910 to the New Magnet Gold Mining Company. In 1912, operations ceased due to the low grades of ore not meeting expenses.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
12 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:
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Diaspore Formula: AlO(OH) |
| ⓘ Dickite Formula: Al2(Si2O5)(OH)4 |
| ⓘ Enargite Formula: Cu3AsS4 |
| ⓘ Galena Formula: PbS |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ Native Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrophyllite Formula: Al2Si4O10(OH)2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Enargite | 2.KA.05 | Cu3AsS4 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Diaspore | 4.FD.10 | AlO(OH) |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| Group 9 - Silicates | |||
| ⓘ | Pyrophyllite | 9.EC.10 | Al2Si4O10(OH)2 |
| ⓘ | Dickite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Diaspore | AlO(OH) |
| H | ⓘ Dickite | Al2(Si2O5)(OH)4 |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Pyrophyllite | Al2Si4O10(OH)2 |
| O | Oxygen | |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Diaspore | AlO(OH) |
| O | ⓘ Dickite | Al2(Si2O5)(OH)4 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Pyrophyllite | Al2Si4O10(OH)2 |
| O | ⓘ Quartz | SiO2 |
| Al | Aluminium | |
| Al | ⓘ Diaspore | AlO(OH) |
| Al | ⓘ Dickite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Pyrophyllite | Al2Si4O10(OH)2 |
| Si | Silicon | |
| Si | ⓘ Dickite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Pyrophyllite | Al2Si4O10(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Enargite | Cu3AsS4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Enargite | Cu3AsS4 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Enargite | Cu3AsS4 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
Australian PlateTectonic Plate
- Taranaki ProvinceVolcanic Arc
New Zealand
- North IslandIsland
Pacific OceanOcean
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
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References
Fraser, Colin (1910) The geology of the Thames subdivision, Hauraki, Auckland. Bulletin (New Series) 10. New Zealand Geological Survey
