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Maghemite occurrence, Cobar, Robinson Co., New South Wales, Australia

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Latitude & Longitude (WGS84): 31° 24' 6'' South , 145° 28' 53'' East
Latitude & Longitude (decimal): -31.401836, 145.481393


Located approx. 35 km WNW of Cobar.

According to Byrnes & Gilligan, the "term 'maghemite' means shiny black pisolites of magnetic iron oxide which formed from magnetite during weathering (Smith 1979). Maghemite occurs as both a veneer covering sedimentary rocks over large parts of the Cobar sheet area, and also as metre-thick accumulations in present creek channels."

Maghemite also occurs in fossil stream channels, up to 5m thick.

Accordingly, the geo-co-ordinates are general in nature and indicate an area approximately 35km WNW of Cobar.

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1 valid mineral.

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References

Byrnes, J.G. and Gilligan, L.B. (1995) Metallogenic Study and Mineral Deposit Data Sheets: Cobar Metallogenic Map (SH/55-14), Geological Survey of New South Wales.

Smith P.P.K. (1979) The observation of enantiomorphous domains in natural maghemite, Contributions to Mineralogy and Petrology, 69, pp249-254.

Mineral and/or Locality  
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