One fragment (II) was found 2000 in an attic in Twann and another (III) in 2005 in the Naturhistorisches Museum Bern, where it had been labeled as hematite.
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This pared with minerals found in the oxidized surface of the meteorite are an indicator that the meteorite fell on the Rhone glacier and was transported by it to Twann during the Würm ice age and then deposited there.
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The meteorite is named after Twannberg (from German: Twann mountain), a mountain that lies north of Twann.
Murchison meteorite | IAB meteorite | Cape York meteorite | Novato meteorite | Nininger Meteorite Award | Nakhla meteorite | Hraschina meteorite |