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Araslanovo Coordinates 55o08.5΄ N; 48o12΄ E Tatarstan, Russia Found 1973 (?) Ordinary chondrite (L/LL5) A brownish stone weighing 132 kg was found by Vladimir Tikhonov while ploughing a field near the village of Araslanovo approximately 30 years ago. In 2003 he sent a piece of the stone to the Vernadsky Institute for identification. Classification and mineralogy (S. Teplyakova, M.Ivanova, Vernad): olivine, Fa26.2 PMD 4%, and pyroxene, Fs22.4Wo1.4, compositions are intermediate between those in L and LL chondrites, kamacite (Ni 4.8-6.6 wt%, Co 0.6-1.0 wt%) and taenite (Ni 35-47 wt%, Co 0.1-0.3 wt%) are present; some troilite grains contain Cu (up to 2 wt%), shock stage S4, weathering grade W1. Specimens:type specimen 700 g and a thin section, Vernad; main mass with anonymous owner. |