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Seller: meteoriteimpact (189) 100%, Location: Torino, Ships to: Worldwide, Item: 283341635684 METEORITE SEYMCHAN, PALLASITE. LARGE SLICE 44 g Seymchan is a pallasite meteorite found in the dry bed of the river Hekandue, a left tributary of river Jasačnaja in the Magadan district, Russia, near the settlement of Seymchan, in June 1967. The main mass of 272.3 kilograms (600 lb) was found during a survey in June 1967 by geologist F. A. Mednikov. The mass was a triangular-shaped thumbprinted meteorite lying among the stones of the brook bed. A second specimen of 51 kilograms (112 lb) was found with a mine detector at a distance of 20 m from the first in October 1967 by I. H. Markov. The main mass was turned over to the Academy of Sciences of the USSR. During a new expedition in 2004, Dmitri Kachalin recovered about 50 kilograms (110 lb) of new material. Remarkably, about 20% of the new specimens were found to contain olivine crystals, and so revealed the silicated nature of the meteorite. The pallasitic structure was not previously discovered during studies on small metal-only sections of the original mass. Seymchan belongs to Main Group pallasites, but it is considered anomalous due to its high Iridium content. Before the discovery of its pallasitic structure it had been classified as IIE anomalous coarse octahedrite. Seymchan is considered a stable and rust-resistant pallasite. Due to the heterogeneous structure of Seymchan, there are two types of specimens: with or without olivine crystals. It is worthy to note that the specimen pictured to the left shows an interesting, seldom seen feature of iron meteorites. The Widmanstätten pattern on the left hand side of the specimen is visibly bent. This is caused by the shearing of the meteorite as it broke up during atmospheric entry and serves as testimony of the violent experience a meteor is subject to as it falls through the atmosphere. - - - SHIPPINGWe use fully trackable delivery services. We'll send you the tracking details as soon as your delivery has been booked. Your item will normally be dispatched within two working days after cleared payment is received. This does not include weekends and bank holidays. This time may increase during the run up to Christmas and during other busy periods. Our delivery charges include professional packaging to ensure your order arrives in first class condition. We ship worldwide, overseas customers please email us for a postage quote. If multiple orders are placed, different items can be combined into the same shipment. If more than an item has been purchased, please wait for the total amount to be updated before making the payment. Note that eBay's estimated delivery dates are a guide only and cannot be guaranteed (for extra EU destinations we request that you are aware of possible delays in customs clearance for your particular country). No Sales Tax/VAT will be charged by ourselves.TERMS OF SALEThe pictures in the advertisement are real photos of the object for sale that we took in person in order to guarantee full transparency on the type and the condition of the item. Scale cube is 1 cm3 (0,39 in), as a reference in our photographs where the size of the object would not otherwise be known. We remain at your disposal for any further information or clarification. Most of the meteorites that we offer here on our Ebay store are either solid iron meteorites or contain quite a bit of iron in them. What this means is that they will require maintenance; and depending on where you live, they could require a lot of work, or even be unstable. The primary reason for this is humidity. We can not guarantee a meteorite to remain stable for any length of time because we can not control how it is maintained or stored once it has left us. If you live in a humid area, please contact us and ask any questions you may have prior to purchasing (alternatively consult our "Meteorites Preservation" document). Should the transaction not fulfill your expectations, we will be ready to meet your requirements. However, please contact us before giving neutral or negative feedback, as in that case we will consider the transaction concluded and will rule out the possibility of issuing a refund. Any problem can be usually solved easily, but if you give neutral or negative feedback we will be automatically discharged from any obligation we have towards buyer. If you are not satisfied with your purchase, you may return it to us, provided that you communicate the return of the item within 14 days of the date of purchase. Items must be returned in perfect condition, sealed when expected. Shipping costs that have been paid at the moment of purchase and those paid for the return of the item are at the buyer's expense. PAYMENTFor convenience all payments are securely processed via PayPal. With PayPal you can pay for items in a few easy clicks and get full protection for your purchases. You can make PayPal payments using your credit card, debit card, or bank account. If you choose to use PayPal then please note that we will only ship to your confirmed PayPal address. We also accept bank transfer as payment method; contact us for further details. Payment must be made within 30 days. After this time a case will be opened against any non paying buyers in order for us to reclaim our ebay fees. Condition: Nuovo, Articolo modificato: No

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