URGENT MESSAGE: We need $75,000 to survive. Click here to find out why.
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for Educators
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Queen Alexandra Range 94204 meteorite (QUE 94204), Queen Alexandra Range, Victoria Land, Eastern Antarctica, Antarctica

This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84): 84° South , 168° East
Latitude & Longitude (decimal): -84.00000,168.00000
Other regions containing this locality:Antarctic Meteorites
Non-native locality type:Meteorite
Meteorite Class:EH7 chondrite meteorite
Meteoritical Society Class: EH7
Metbull:View entry in Meteoritical Bulletin Database
Köppen climate type:EF : Ice cap climate

Enstatite-rich Meteorite (EH7 Chondrite or achondrite??)
1994 find, 2.43 kg, weathered

Queen Alexander Range 94204 (QUE 94204) is a coarse-grained, unbrecciated Enstatite-rich stone (~70 vol%) accompanied by significant amounts of Fe-Ni metal, Troilite, and Plagioclase. Weathering products suggest an even larger initial metal component (~20%?). A number of minor phases - daubréelite, niningerite, oldhamite, schreibersite - frequently found in Enstatite Chondrites and/or Enstatite Achondrites have been reported by one or more observers. Severe weathering complicates the issue as metal, most oldhamite, and other reduced minerals have been replaced by terrestrial weathering products (e.g., calcite, goethite…). Still, the equigranular rounded Enstatite crystals and interstitial phases have been brought at least to the point of melting. In fact, QUE 94204 is but one of several enstatite-rich meteorites found as the Antarctic site which display magmatic textures.

However, such differences due to small sample size, intrinsic inhomogeneities, and differential weathering are relative minor problems expected with most meteorite finds. Classifying QUE 94204 has, however, presented major difficulties. Initially classified as an EH7 Enstatite Chondrite and still so listed at the Meteoritical Bulletin Database, Izawa et al., (2011) classified QUE 94204 as a 'Primitive Enstatite Achondrite' while van Niekerk et al., (2014) argue that QUE 94204 is best described as an 'Anomalous Enstatite Achondrite.' These and other disagreements about these ancient objects suggests about that our assumptions about their nature and formational environment are still incomplete.

Mineral List

16 valid minerals.

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.


Score, R. & Lindstrom, M. [eds](1996) Petrographic Descriptions: Antarctic Meteorite Newsletter 19 (1). (Feb 1996)

Weisberg, M. K., Prinz, M. & Nehru, C. E. (1997) QUE 94204 - an EH-chondritic melt rock (Conference Paper): Lunar and Planetary Science Conference XXVIII, pdf#1358: 525-526. (March 1997)

Izawa, M. R. M., Flemming, R. L., Banerjee, N. R. & Matveev, S. (2011) QUE 94204: A primitive enstatite achondrite produced by the partial melting of an E chondrite-like protolith. Meteoritics & Planetary Science 46 (11): 1742–1753. (Nov 2011)

van Niekerk, D., Keil, K. & Humayan, M. (2014) Petrogenesis of anomalous Queen Alexandra Range enstatite meteorites and their relation to enstatite chondrites, primitive enstatite achondrites, and aubrites: Meteoritics & Planetary Science 49 (3): 295-312. (March 2014)

External Links

Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: June 23, 2018 20:39:37 Page generated: November 12, 2017 22:10:15
Go to top of page