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Kara #1 Pit, Kara Mines, Hampshire district, Burnie City, Tasmania, Australia

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Latitude & Longitude (WGS84): 41° 18' 34'' South , 145° 46' 30'' East
Latitude & Longitude (decimal): -41.30944,145.77500
Köppen climate type:Cfb : Temperate oceanic climate


An operating open-cut mine, located 40 km south of Burnie in northwestern Tasmania, producing magnetite and minor scheelite. It is the only presently operating mine in a series of related skarn deposits associated with Devonian granites intruding Ordovician limestones.

The pit contains a zoned magnetite-andradite-hedenbergite-vesuvianite-epidote skarn, which contains minor scheelite and molybdenite and calcite veins with various Cu, Pb, As, Zn, Bi sulphides, fluorite and some Be minerals.
Famous for excellent andradite specimens.

NOTE: It has been reported to us by local collectors that collecting at the mine is no longer permitted by the mine owners.

At least four paragenetic stages of skarn formation and ore deposition have been recognized (Zaw et al., 2000): stage I, clinopyroxene ± garnet ± vesuvianite ± wollastonite ± quartz ± scheelite; stage II, garnet-vesuvianite-magnetite ± scheelite ± apatite ± quartz; stage III, magnetite-amphibole-epidote-fluorite-quartz ± chlorite ± garnet ± vesuvianite ± scheelite ± carbonate ± pyrite ± clinopyroxene; and stage IV, hematite ± fluorite ± calcite ± quartz.

Mineral List


49 valid minerals.

Rock Types Recorded

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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

Late Devonian
358.9 - 382.7 Ma



ID: 915602
Housetop Granite

Age: Late Devonian (358.9 - 382.7 Ma)

Stratigraphic Name: Housetop Granite

Description: I-type. Housetop Batholith rocks - biotite granite, reddish pink, +range of textures, fine- to med.-grained groundmass, mod.to strong porphyritic texture, miarolitic cavities.............

Comments: igneous felsic intrusive; synthesis of multiple published descriptions

Lithology: Igneous felsic intrusive

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



This page contains all mineral locality references listed on mindat.org. 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 mindat.org 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.

References

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- Singoyi, B. (1997): MINERAL PARAGENESIS, GEOCHEMISTRY AND FLUID CHARACTERISTICS OF THE KARA SCHEELITE-MAGNETITE SKARN DEPOSIT, NORTHWESTERN TASMANIA. Master Thesis, University of Tasmania. [http://eprints.utas.edu.au/21586/1/whole_SingoyiBlackwell1997_thesis.pdf]
- MINERALOGICAL MAGAZINE, SEPTEMBER 1984, VOL. 48, PP. 397-400
- K. Zaw, K. Zaw, and B. Singoyi (2000): Formation of magnetite-scheelite skarn mineralization at Kara, Northwestern Tasmania: Evidence from mineral chemistry and stable isotopes. Economic Geology, 95, 1215-1230.
- Singoyi, B. and Khin Zaw (2001): A petrological and fluid inclusion study of magnetite–scheelite skarn mineralization at Kara, Northwestern Tasmania: implications for ore genesis. Chem. Geol. 173, 239–253.
- Sorrell, S. and Bottrill, R. (2005): Minerals of the Kara Mine, Tasmania. 48 pp. [see http://www.lulu.com/content/150017]
- Bottrill, R. S. & Baker, W. E. (2008): A Catalogue of the Minerals of Tasmania. Geological Survey Bulletin 73, Mineral Resources Tasmania, 254 pp.

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