|Composition||Chromium, spinel, rutile|
|Alternative names||Öst 65|
Österplana 065 (Öst 65) is an Ordovician fossil meteorite found in the Thorsberg quarry in Sweden on June 26, 2011 and scientifically described in 2016. Measuring 8×6.5×2 cm, it impacted the Earth 470 million years ago. According to the naming conventions of the Meteoritical Society, the meteorite was named after the locality at which it was found, Österplana.
The meteorite type does not fit into existing meteorite classification. It was preliminarily classified as "winonaite-like". The level of chromium isotope 54Cr in Österplana 065 is similar to those in ordinary chondrites, while oxygen isotopes are similar to those in some rare primitive achondrites. Österplana 065 also features a chromium-spinel–rutile assemblage, not observed in other meteorites.
- B. Schmitz, Q.-Z. Yin, M. E. Sanborn, M. Tassinari, C. E. Caplan, G. R. Huss (14 June 2016). "A new type of solar-system material recovered from Ordovician marine limestone". Nature. 7: 11851. Bibcode:2016NatCo...711851S. doi:10.1038/ncomms11851. PMC 4911632. PMID 27299793.CS1 maint: uses authors parameter (link)
- Entry in Meteoritical Bulletin Database
- New ‘Extinct’ Meteorite Hints at Violent Cosmic Collision, NY Times, June 16, 2016