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Crown Gold Mine, Norseman, Dundas Shire, Western Australia, Australia

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Location is approximate, estimate based on other nearby localities.
Latitude & Longitude (WGS84): 32° South , 121° East (est.)
Margin of Error:~12km

The Bullen, Crown and OK declines are part of the Norseman Gold Mine. Specimens are usually labelled from the Bullen Mine. It is the longest continuously running gold mine in Australia.

As with most gold mines in the region it is hosted by the Norseman-Wiluna Greenstone Belt. The belt at Norseman shows the following units from the east:
1. Penneshaw Formation-100m, basalt and felsic volcanics.
2. Noganyer Iron Formation-1600m, iron with sediments and ultramafic rocks.
3. Woolyeenyer Formation-8000m, pillow basalts and gabbro with interbedded shales and chert near the base
4. Mt Kirk Formation-6000m, mixed felsic volcanics and sediments with chert, iron, and ultramafic sills.

Gold mineralisation is found in the lower sections of the Woolyeenyer Formation, known as the Mararoa Basalt sequence. It is folded into a steep west dipping homocline (strata dipping in one direction), and cut by a series of north north-west trending faults.

At Crown, gold is found in east dipping laminated reefs striking north north-west. The reefs vary from 0.5-2.0m thick occupying shears that contain a number of shoots, with frequent barren patches. Alteration minerals are protolith controlled, and include biotite, tremolite, actinolite, chlorite, calcite and minor sulphides. Sphalerite and galena is often found associated with the gold.

Mineral List

15 valid minerals.

Rock Types Recorded

Entries shown in red are rocks recorded for this region.

Note: this is a very new system on and data is currently VERY limited. Please bear with us while we work towards adding this information!

This page contains all mineral locality references listed on 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 visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

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