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Mafra meteorite, Mafra, Santa Catarina, Brazil

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Latitude & Longitude (WGS84): 26° 10' 0'' South , 49° 55' 60'' West
Latitude & Longitude (decimal): -26.1666666667, -49.9333333333
Unequilibrated Ordinary chondrite, brecciated (L3-4,br; S3)
Fell, 1941; 600 g

Several fragments of a brecciated and shocked meteorite stone were recovered near Mafra at an indefinite date and one 8X6X5 cm stone was preserved. Prominent rounded olivine and pyroxene chondrules (and fragments) dominate a microcrystalline matrix with turbid glass. Olivine is unequilibrated and marked by kink bands due to shock. Both orthopyroxene and clinopyroxene are present as well as minor plagioclase. Accessory troilite is also present, but Fe-Ni metal is apparently quite sparse. A small C-bearing clast was noted. Small mineralogically uncharacterized phosphates are also reported.

The meteorite is described as a 'genomict breccia' as its primary constituents are a mechanical mixture of equilibrated L4 material with unequilibrated L3 material derived, presumably, from the same original parent body. Some additional complexities, small microchondrules, and small blebs would be due to the forcible impact that brought the material together before (or during) an eventual ejection into space.

Mafra is the only witnessed L3-4 meteorite fall currently listed at the Meteoritical Bulletin Database. Its 600 g mass exceeds the total mass of the 3 small L3-4 finds that have also been recovered (as of Oct 2015).

Mineral List

10 entries listed. 4 valid minerals.

The above list contains all mineral locality references listed on 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 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.


Mason, B. (1963) Olivine composition in chondrites. Geochimica et Cosmochimica Acta 27, 1011-1023.

Levi-Donati, G. R., Shima, M. & Sighinolfi, G. P. (1976) Brazilian meteorites - The Mafra, Santa Catarina State, chondrite: Meteoritics 11(1): 29-41. (Mar 1976).

Gomes, C.B. & Keil, K. (1980) Brazilian Stony Meteorites: University of New Mexico Press: Albuquerque. 162 pages.

Graham, A. L., Bevan, A. W. R. & Hutchison, B. (1985) Catalogue of Meteorites (4/e). University of Arizona Press: Tucson.

Lange, D.E. & Keil, K. (1979) The Mafra Meteorite and Its Lithic Clasts: A Genomict L-Group Chondrite Breccia (abstract). Meteoritics 14: 472-473. (Dec 1979).

Grady, M.M. (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge; New York; Oakleigh; Madrid; Cape Town. 689 pages
Lauretta, D.S. & McSween Jr., H.Y., Editors (2006). Meteorites and the Early Solar System II. University of Arizona Press: Tucson, Arizona. 943 pages.

Grady, M.M., Pratesi, G. & Moggi-Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages.

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