La Grange meteorite, La Grange, Oldham Co., Kentucky, USA
This page is currently not sponsored. Click here to sponsor this page.
Found 1860, 51 kg
An elongated mass of 51 kg was found in 1860 by William Daring near La Grange. None of any original fusion crust remains. While the dominant Fe-Ni metal [Ni~ 7.7%] has clear features indicating a fine or finest octahedrite, its distorted Widmanstätten structure has numerous features due to cold deformation. In addition, abundant plessite [40 vol%] as well as taenite have numerous minute faults. Martensite is especially apparent in the center of some taenite fields. Troilite is often found in scattered lenticular inclusions and at times appears to have been melted by shock along and into daubréelite and metal boundaries. Besides daubréelite, there are preliminary indications that brezinaite — another rare Cr-rich sulfide — may also be present. On the other hand, phosphides do not appear to be present (Buchwald,1975). Some troilite has been converted to pentlandite by terrestrial corrosion.
During the mid-19th Century settlement of Kentucky the first seven meteorites recovered were all Irons. Two of these, Smithland and La Grange, were IVA Irons.
Mineral List
7 entries listed. 4 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
Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 3 volumes, 1418 pages.
Grady, M. M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, London, New York, Oakleigh, Madrid. 689 pages.
Grady, M. M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, London, New York, Oakleigh, Madrid. 689 pages.
External Links
