Aorangi Mine, Golden Blocks Goldfield, Tasman Region, New Zealandi
Regional Level Types | |
---|---|
Aorangi Mine | Mine |
Golden Blocks Goldfield | Ore Field |
Tasman Region | Region |
New Zealand | Country |
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Latitude & Longitude (WGS84):
40° 41' 56'' South , 172° 25' 32'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Takaka | 1,223 (2011) | 35.7km |
Mindat Locality ID:
297561
Long-form identifier:
mindat:1:2:297561:3
GUID (UUID V4):
42a458c3-9e3f-4046-b959-ccf80d42a305
The mine produced approximately 26,000 ounces at 46.9 g/t before flooding caused it to close in 1914. It was the highest producing mine on the Golden Blocks goldfield.
Perth (Western Australia) based company, Strategic Elements Ltd, has held the lease for several years to when this was written (2017), and discovered long lost written material from the previous explorers in the 1930's. The Golden Blocks Mines in 1932 determined there were 300 metres of un-mined underground developments at level 3, before flooding forced the prior miners out. Grades were found at 663 g/t over a 0.75 metre length.
In 1972, Newmont Pty Ltd mapped the Golden Block lode.
At the mine, mineralisation was found along a 400 metre length, down to 100 metres, via four levels, in quartz lodes up to 1.5 metre thick, within sheared and brecciated shale. The gold workings are confined to 42 metres of the Mine Bed unit of shale, in sandstone and mudstone, in or near the north-south trending Aorangi Fault, one of several north-south faults in the area. There is an extensive crush zone up to 3 metres wide, containing thin quartz veins up to 2 metres long, and irregular and lensoid quartz areas up to one metre wide, scattered irregularly along the fault. The shoots plunge south. Gold was richest near the surface and decreased in value at depth. Supergene enrichment occurs along the fault, and where more minor east-west faults intersect the main fault.
Within the mine itself, and surrounding rocks, graptolite fossils have been found. (Savage, 1971) states aragonite crystals can be found in the area, but provides no further details.
Co-ordinates are approximate.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
2 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:
ⓘ Gold Formula: Au |
ⓘ Gypsum Formula: CaSO4 · 2H2O |
ⓘ Gypsum var. Selenite Formula: CaSO4 · 2H2O References: Rod Martin CollectionIdentified by Rod Martin: Visual Identification |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
ⓘ | Gold | 1.AA.05 | Au |
Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
ⓘ | var. Selenite | 7.CD.40 | CaSO4 · 2H2O |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Gypsum var. Selenite | CaSO4 · 2H2O |
H | ⓘ Gypsum | CaSO4 · 2H2O |
O | Oxygen | |
O | ⓘ Gypsum var. Selenite | CaSO4 · 2H2O |
O | ⓘ Gypsum | CaSO4 · 2H2O |
S | Sulfur | |
S | ⓘ Gypsum var. Selenite | CaSO4 · 2H2O |
S | ⓘ Gypsum | CaSO4 · 2H2O |
Ca | Calcium | |
Ca | ⓘ Gypsum var. Selenite | CaSO4 · 2H2O |
Ca | ⓘ Gypsum | CaSO4 · 2H2O |
Au | Gold | |
Au | ⓘ Gold | Au |
Other Regions, Features and Areas containing this locality
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Aorangi Mine, Golden Blocks Goldfield, Tasman Region, New Zealand