Iguaraçu meteorite, Iguaraçu, Paraná, Brazil
This page is currently not sponsored. Click here to sponsor this page.
| Latitude & Longitude (WGS84): | 23° 11' 60'' South , 51° 49' 60'' West |
| Latitude & Longitude (decimal): | -23.2, -51.8333333333 |
Fall, Oct 1977; 1200 g
A single crusted mass with a few regmaglypts on its surface fell near Iguaracu. Within the interior a variety of chondrules and chondrule fragments have been integrated into the matrix. Compositionally, bulk iron contents (26.7 wt%Fe) and olivine (Fa18.7) and low Ca-pyroxene (Fs16.7) are characteristic of the H-chondrite geochemical group. Mineralogically the meteorite is dominated by olivine and pyroxene (both orthopyroxene and clinopyroxene). Fe-Ni metal grains (kamacite and taenite) are common. A few grains of plagioclase and maskelynite are also present. Fractured chondrules, maskelynite, and the presence of clinopyroxene indicate significant preterrestrial shock. Mild oxidation sometimes stains the otherwise nondescript grey matrix.
Iguaracu is one of the 172 witnessed meteorite falls (including 4 Brazilian falls) classified exactly as an H5 chondrite at the Meteoritical Bulletin Database [June 2016]. The main mass is at the Universitade de Maringá in Fundaçao.
Mineral List
8 entries listed. 1 valid mineral.
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
Graham, A.L. (1990) Meteoritical Bulletin: Meteoritics 25 (1): 59-70. (March 1990).
Brooks, R. R. et al. (1990). The Iguaracu H5 chondrite - A fall from Parana State, Brazil. Meteoritics 25: p. 231, 232.(Sept1990).
Grady, M.M. (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge; New York; Oakleigh; Madrid; Cape Town. 689 pages.
Grady, M.M., Pratesi, G. & Moggi-Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages.
Brooks, R. R. et al. (1990). The Iguaracu H5 chondrite - A fall from Parana State, Brazil. Meteoritics 25: p. 231, 232.(Sept1990).
Grady, M.M. (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge; New York; Oakleigh; Madrid; Cape Town. 689 pages.
Grady, M.M., Pratesi, G. & Moggi-Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages.
External Links
http://www.lpi.usra.edu/meteor/metbull.php - MeteoriticalBulletinDatabase
http://www.lpi.usra.edu/meteor/metbull.php?code=12003 -Iguaracu@MetBullDatabase
http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1990Metic..25..231B&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf -Iguaracu described.
http://www.lpi.usra.edu/meteor/metbull.php?code=12003 -Iguaracu@MetBullDatabase
http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1990Metic..25..231B&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf -Iguaracu described.
