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Spotted Dog Mine, Mt Palmer, Mt Riddock Station, Harts Range (Harts Ranges; Hartz Range; Hartz Ranges), Central Desert Region, Northern Territory, Australia

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Latitude & Longitude (WGS84): 23° 4' 13'' South , 134° 56' 18'' East
Latitude & Longitude (decimal): -23.0704619826, 134.938522767

An abandoned mica mine. Situated on the lower slopes of Mount Palmer, and can accessed by walking from the former Disputed mine camp at the base of the mountain.

The mine started around 1896, and was worked sporadically over the years, until it was closed after the deaths of two men from an underground collapse on the 07 August 1931. Bill Petrick is noted as an early owner of the mine. The Oolgarinna Mica Company was producing material from the mine around 1905. Italian syndicates controlled the mine in the 1930's, and the General Mica Supplies Pty Ltd is seen as taking over the mine in 1942.

The dumps contain mica books showing hematite staining, which gives the specimens an attractive cross-ribbed or hexagonal pattern. Also found are decent transparent quartz crystals. Also possible is smoky and rose quartz, amethyst, beryl, schorl, garnets, yellow-green mica, bluish quartz, and graphic pegmatite.

Mineral List

4 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!

The above list 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.


Daly, J., Dyson, D.F. (1956) Geophysical Investigations for Radioactivity in the Harts Range Area, Northern Territory, Department of National development/Bureau of Mineral Resources Geology and Geophysics, Commonwealth of Australia, Report No.32.

Centralian Advocate newspaper (Alice Springs) (1953) Harts Range Field History, 16/10/1953.

Thompson, D. (ed) (1986) A Guide to Fossicking in the Northern Territory. Northern Territory Geological Survey, Northern Territory Department of Mines and Energy, 2nd ed., 73p.

Commonwealth of Australia Gazette (1942) The Northern Territory of Australia. Mining Ordinance 1939-1942, 22/10/1942.

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