Pallasite - PMG Seymchan, Magadan District, Eastern RussiaOriginally, Seymchan was believed to be composed only of iron-nickel, but later, olivine crystals were found in Seymchan specimens, re-classifying it as a far more rare pallasite. Pallasites are literally gemstones from outer space containing olivine crystals mixed in with the iron-nickel matrix. The present very large slice displays more than fifty per cent olivine crystals and silicate inclusions in its iron-nickel matrix and has been polished to reveal the fascinating interior crystallization. The Widmanstätten pattern is seen on one side of the meteorite, whereas on the reverse side the metal is mirror-bright. Weighing approximately 492.8 grams (1.08 lbs) and measuring 10 x 7 in