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Stornes Peninsula, Larsemann Hills (Larseman Hills), Prydz Bay, Ingrid Christensen Coast, Princess Elizabeth Land, Eastern Antarctica, Antarctica

Boralsilite
Stornes Peninsula, Larsemann Hills, Prydz Bay, Ingrid Christensen Coast, Princess Elizabeth Land, Eastern Antarctica, Antarctica

Photo: R.Kristiansen
Latitude: 69°42'S
Longitude: 76°7'E
Outcrops of granulite facies pelitic gneiss and mafic granulite, which underwent a complicated deformational metamorphic history. Peak metamorphic assemblages are characterized by inclusions of cordierite and sillimanite in coarse grained garnets or spinels in pelitic gneiss, and by inclusions of orthopyroxene and plagioclase in coarse grained garnet in mafic granulite. Sapphirine-magnetite and sapphirine-spinel-sillimanite-magnetite-quartz assemblages are included in coarse grained orthopyroxene in biotite-rich quartzite, and fine grained spinel occurs as inclusions in this sapphirine.

References

- Laixi Tong, Xiaohan Liu, Liansheng Zhang, Haihong Chen, Liudong Ren, Yanbin Wang, and Yue Zhao (1997): Characteristics of the Early Remnant Mineral Associations in Granulite facies Rocks from the Larsemann Hills, East Antarctica and Their Metamorphic Conditions. Acta Petrologica Sinica 13(2), 127-138.
- Grew, E.S., McGee, J.J., Yates, M.G., Peacor, D.R., Rouse, R.C., Huijsmans, J.P.P., Shearer, C.K., Weidenbeck, M., Thost, D.E., and Su, S. (1998): Boralsilite (Al16B6Si2O37): a new mineral related to sillimanite from pegmatites in granulite-facies rocks. American Mineralogist 83, 638-651.


Mineral List

Mineral list contains entries from the region specified including sub-localities
'Albite-Anorthite Series'
'Apatite'
Biotite
Boralsilite (TL)
Cordierite
Diaspore
Dravite
Fluorapatite
'Garnet'
'K Feldspar'
Magnetite
Monazite-(Ce)
Muscovite
'Orthopyroxene Subgroup'
Pyrite
Quartz
Rutile
Sapphirine
Schorl
Sillimanite
Spinel
Stornesite-(Y) (TL)
Tassieite (TL)
Wagnerite
Xenotime-(Y)


31 entries listed. 19 valid minerals. 3 type localities (valid minerals).

Localities in this Region

Antarctica
  • Eastern Antarctica
    • Princess Elizabeth Land
      • Ingrid Christensen Coast
        • Prydz Bay

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 24th Jun 2011 13:06:07
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