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Larned meteorite, Pawnee Co., Kansas, USA

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Latitude & Longitude (WGS84): 38° 11' 57'' North , 99° 9' 42'' West
Latitude & Longitude (decimal): 38.1994444444, -99.1619444444


Anomalous Aubrite, Polymict
Found 1977; 28.1 kg;

A single weathered stone was discovered in 1977, but not identified as a meteorite until 2007. Silicates include not only dominant, nearly pure enstatite, but diopside, plagioclase glass, traces of forsteritic olivine, and silica as well. Metallic nickel-iron is found both as kamacite and taenite. In spite of significant weathering, Larned contains several phases indicative of the extreme reduced mineralogy of the Enstatite clan (e.g., niningerite, alabandite). Larned contains more metal and silica than most Aubrites plus a number of features due to intense shock.

Larned is the 4th most massive of the 70 Aubrites listed at the Meteoritical Society’s Web Site in early 2014. (There is some dispute about whether the more massive Al Haggounia 001 should be classified as an Aubrite or an Enstatite Chondrite.)

Mineral List


10 valid minerals.

The above list 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

Weisberg et al., (2010) Meteoritical Bulletin, no. 97: Meteoritics & Planetary Science 45 (3): 449-493. (March 2010)

Irving, A. J., Bunch, T. E., Kuehner, S. M. & Stimpson, D. (2010) Ballen Silica Indicative of High Shock Pressures in the Anomalous, Metal-rich Larned Aubrite from Central Kansas, USA (abstract, id. 5309): Meteoritics & Planetary Science 45 (7, Supplement): p. A89. (July 2010)

Keil, K. (2012). Angrites, a small but diverse suite of ancient, silica-undersaturated volcanic-plutonic mafic meteorites, and the history of their parent asteroid. Chemie der Erde 72 (3):191-218. (Sept 2012)

External Links

http://www.lpi.usra.edu/meteor/metbull.php= Meteoritical Bulletin Database
http://www.lpi.usra.edu/meteor/docs/mb97.pdf= Meteoritical Bulletin, no. 97

 
Mineral and/or Locality  
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