Duchess Mine, Black Hill, City of Ballarat, Victoria, Australia
Latitude & Longitude (WGS84): | 37° 33' 40'' South , 143° 52' 10'' East |
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Latitude & Longitude (decimal): | -37.56132,143.86967 |
GeoHash: | G#: r1q63f4tq |
Köppen climate type: | Cfb : Temperate oceanic climate |
Historic gold mine.
The Duchess Gold Mining Company was formed in 1873, and during the first six months the mine was worked by the company on its own accord, then for the rest of its life under tribute. During its first three years 8483 tonnes of quartz was crushed yielding 3292 ounces of gold. The company dispensed with the services of a mine manager to oversee the tributers, instead relying on the judgement of the tributers themselves, which the company claimed was a successful process.
William Porter was charged with assaulting a Duchess Company contractor in 1881. Porter was living on the company's land, and had constructed a fence around his house. The company proceeded to dismantle the fence which Porter took exception to.
Like many of the mines in the area, gold yields were low, apart from the occasional rich patch of nuggets. Several different parties of tributers came and went during the mine's short history. The shaft site is under a shopping centre car park.
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsDetailed Mineral List:
ⓘ Gold Formula: Au Reference: The Ballarat Star newspaper (1876) Duchess Quartz Company No-Liability, 21 July 1876. |
List of minerals arranged by Dana 8th Edition classification
Group 1 - NATIVE ELEMENTS AND ALLOYS | |||
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Metals, other than the Platinum Group | |||
ⓘ | Gold | 1.1.1.1 | Au |
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
Early Silurian - Cambrian 427.4 - 541 Ma ID: 3185333 | Paleozoic sedimentary rocks Age: Paleozoic (427.4 - 541 Ma) Comments: Lachlan Fold Belt Lithology: Sedimentary 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] |
Darriwilian - Tremadocian 458.4 - 485.4 Ma ID: 931622 | Castlemaine Group Age: Ordovician (458.4 - 485.4 Ma) Stratigraphic Name: Castlemaine Group Description: Marine turbiditic sandstone, mudstone, black shale; minor granule conglomerate. Comments: sedimentary siliciclastic; synthesis of multiple published descriptions Lithology: Sedimentary siliciclastic 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