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********* METEORITE SEYMCHAN PALLASITE ********* Stony - Nickel & Iron Meteorite (Pallasite) Composition: Nickel, Iron, & Olivine Crystals A mass too large to move was discovered by the geologist F. A. Mednikov during field work in June 1967. It was situated in the stream bed of a small unnamed tributary of the Yasachnaya River which is a tributary of the Kolyma River. The mass was named after the town of Seymchan, situated about 150 km southeast of the locality of the discovery. It turned out to be a roughly triangular prism, measuring 60 x 45 x 40 cm with pronounced regmaglypts and an estimated weight of 300 kg. Another fragment, of 51 kg, was discovered about 20 m downstream from the first find. No analytical or structural work has yet been reported. The large mass is in the Academy of Sciences, Moscow, the small one, in the Museum of the Northeastern Geological Survey (in Magadan). The information above is from a report by Tsvetkov (1969; in Russian).[J.T. Wasson (personal communication 1974): Group IIE with about 9.15% Ni, 24.6 ppmGa,68.3 ppm Ge and 0.55 ppm Ir]. (By Vagn. F. Buchwald) During the last two years there were some expeditions to this remote place and some hundreds kgs of this meteorite have been collected. The structure of this meteorite includes olivine inclusions, that allows one to assume, that Seymchan can be an abnormal pallasite. Some samples contain abundant olivine inclusions, and some samples are only nickle and iron.Others have a structure similar to that of mesosiderite meteorites. The etched and polished surfaces show very strong and varied Widmanstatten structure patterns. (28 grams = 1 ounce)

(093007c) Complete Meteorite Slice Name: METEORITE SEYMCHAN PALLASITE Type: Pallasite - Stony ,Nickle & Iron Composition: Nickel, Iron, & Green/Orange Olivine Crystals Location: Yasachnaya, Russia Great Presentation - Meteorite will be in Glass Top Box with Color Information Sheet & Stand Thick slice that has been polished on both sides - Crystals are clear but too thick for light to pass through! Very Nice and Interesting Specimen Weight = 353 grams ***** $540.00 For a larger image of the specimen, click on photo at right. To order this item, please record item catalog number and scroll to yellow box at the bottom of this page. Click on this yellow box to go to our secure order form where you can place your order. For multiple items, record the item numbers on paper and then proceed to the yellow box.

(093007d) Complete Meteorite Slice Name: METEORITE SEYMCHAN PALLASITE Type: Pallasite - Stony ,Nickle & Iron Composition: Nickel, Iron, & Green/Orange Olivine Crystals Location: Yasachnaya, Russia Great Presentation - Meteorite will be in Glass Top Box with Color Information Sheet & Stand Thick slice that has been polished on both sides - Crystals are clear but too thick for light to pass through! Very Nice and Interesting Specimen Weight = 154 grams ***** $231.00 For a larger image of the specimen, click on photo at right. To order this item, please record item catalog number and scroll to yellow box at the bottom of this page. Click on this yellow box to go to our secure order form where you can place your order. For multiple items, record the item numbers on paper and then proceed to the yellow box.

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