{"product_id":"meteorite-seymchan-702g-extra-quality-magadan-russia-mesm16","title":"Seymchan Meteorite 70.2g – Extra quality – Magadan, Russia - MESM16","description":"\u003cul\u003e\n\u003cli\u003eType: Pallasite\u003c\/li\u003e\n\u003cli\u003eLocation: Magadan, Russia\u003c\/li\u003e\n\u003cli\u003eWeight: 70.2g\u003c\/li\u003e\n\u003cli\u003eDimensions: 8.5 x 5.2 x 0.3 cm\u003c\/li\u003e\n\u003cli\u003eYear of discovery: 1967\u003c\/li\u003e\n\u003cli\u003eKnown total weight: 323.3 kg\u003c\/li\u003e\n\u003cli\u003eSurface treatment: cut, polished slice\u003c\/li\u003e\n\u003cli\u003eExtra quality - olivines are larger, very clear and beautifully translucent\u003c\/li\u003e\n\u003cli\u003eDETAILED DESCRIPTION\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSeymchan – unique pallasite from Russia\nThe Seymchan meteorite fell in the Magadan region near the settlement of Seymchan in Russia, though the exact fall date remains unknown. It was discovered in 1967, with a 272 kg mass found in June and another 51 kg mass in October. Initially, only metallic parts were discovered, classifying it as an iron meteorite of type IIE. Only in 2004 was it determined that 20% of the samples contained olivine crystals, leading to its classification as a pallasite.\nInternal structure\nSeymchan has an unusual internal structure. Some parts are rich in olivine inclusions (pallasitic sections), while others consist almost entirely of iron–nickel alloys, mainly kamacite and taenite. In the metallic sections, characteristic Widmanstätten patterns can be revealed after polishing and acid etching. It also contains minerals such as troilite, schreibersite, and chromite.\nPurely metallic section composed of kamacite and taenite\nPallasitic section with olivine inclusions\nOrigin\nThe meteorite originated from a differentiated asteroid in the main belt between Mars and Jupiter, which in its early evolution underwent melting and material separation. Heavier elements (iron and nickel) settled in the core, while lighter silicate minerals formed the mantle. Later collisions and dynamic processes mixed metallic and silicate components. The result is a meteorite that contains both purely metallic parts and pallasitic sections with olivine crystals.\u003c\/p\u003e","brand":"PeltramMinerals","offers":[{"title":"Default Title","offer_id":58028602196293,"sku":"MESM16","price":2153.69,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0881\/1659\/2965\/files\/15805-12_meteorite-seymchan-70-2g---extra-quality---magadan--russia.jpg?v=1779383339","url":"https:\/\/moldavite.it\/en\/products\/meteorite-seymchan-702g-extra-quality-magadan-russia-mesm16","provider":"Moldavite.it","version":"1.0","type":"link"}