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

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Latitude & Longitude (WGS84): 41° 18' 33'' South , 145° 46' 29'' East
Latitude & Longitude (decimal): -41.30944,145.77500
GeoHash:G#: r0xsvpy55
Locality type:Pit
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


50 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

Tertiary
2.588 - 66 Ma



ID: 3191514
Cenozoic volcanic rocks

Age: Cenozoic (2.588 - 66 Ma)

Comments: East Australia Cainozoic Volcanic Belt

Lithology: Mafic volcanic 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]

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

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Matsubara, S., Kato, A., Nagashima, K. (1984) Mpororoite and anthoinite from the Kara mine, Tasmania. Mineralogical Magazine 48, 397-400.
Whitehead, C.H. (1990) Kara scheelite-magnetite deposit - production and deposits. In: Turner, N.J. & Taheri, J. (1990) Tin and tungsten deposits and related Devonian granitoids. Excursion guide E2 / 10th Australian Geological Convention, Hobart, 1990 Geological Society of Australia, 42 pages and maps.
Turner, N.J. (1992) Kara and other nearby magnetite resources. Tasmania Department of Mines-Report 1992/12.
Singoyi, B. (1997) Mineral Paragenesis, Geochemistry and Fluid Characteristics of the Kara Scheelite-Magnetite Skarn Deposit, Northwestern Tasmania. (Masters Thesis, University of Tasmania, Hobart), 161 pages.
Zaw, K., Singoyi, B. (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., Khin Zaw (2001) A petrological and fluid inclusion study of magnetite–scheelite skarn mineralization at Kara, Northwestern Tasmania: implications for ore genesis. Chemical Geology 173: (1-3), 239–253.
Sorrell, S., Bottrill, R. (2005) Minerals of the Kara Mine, Tasmania, 48 pages.
Tuma, A. (2007) Kara Field Trip: Friday the 20th of April, 2007 - Stolzite Day!. Australian and New Zealand Mineral Collector Magazine, Issue No.2, 20-22.
Bottrill, R.S., Baker, W.E. (2008) A Catalogue of the Minerals of Tasmania. Geological Survey Tasmania Bulletin 73, 254 pages.

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