9.6 x 8 x 6 cm 1296 gm Chemical composition: 91.8 % iron 7.7 % nickel 0.5 % cobalt 0.04 % phosphorus 1.97 ppm gallium 0.111 ppm germanium 2.4 ppm iridium. Provenance: Swiss private collection The Gibeon meteorite belongs to the group of iron meteorites. Its fragments were first found in 1836 in South West Africa, near the town of Gibeon in Namibia, on the east bank of the Gregt Fish River. The Gibeon meteorite was first described by Captain James Edward Alexander. This massive meteorite is thought to have collided with Earth over a million years ago, in prehistoric times. Its age itself is estimated at an incredible 4.6 billion years - making it a contemporary witness to the formation of our solar system! GIBEON IRON METEORIT 1296 gr Chemische Zusammensetzung: 91,8 % Eisen 7,7 % Nickel 0,5 % Cobalt 0,04 % Phosphor 1,97 ppm Gallium 0,111 ppm Germanium 2,4 ppm Iridium. Provenienz: Schweizer Privat Kollektion Der Gibeon Meteorit z?hlt zu den Eisenmeteoriten. Dessen Bruchstücke wurden erstmals 1836 in Südwestafrika, nahe der Stadt Gibeon in Namibia, am Ostufer des Great Fish River gefunden. Der Gibeon Meteorit wurde zuerst von Captain James Edward Alexander beschrieben. Der Meteorit kollidierte vermutlich bereits vor über einer Million Jahre, zu pr?historischer Zeit mit der Erde. Sein Alter selbst wird auf unglaubliche 4,6 Milliarden Jahre gesch?tzt – was ihn zu einem Zeitzeugen der Entstehung unseres Sonnensystems macht! Beim Aufschnitt von Gibeon Meteoriten werden deutlich die faszinierenden Widmanst?tten-Strukturen sichtbar. Die Erkl?rung dessen liegt in der unterschiedlichen Best?ndigkeit der Nickel-Eisen-Minerale Kamacit und Taenit. W?hrend der Nickelarme Kamacit st?rker angegriffen und aufgel?st wird, bleiben die Nicklreichen Taenitkristalle sichtbar. Als Widmanst?tten-Strukturen werden die vorwiegend in meteoritischem Material nachweisbaren, charakteristischen geometrischen Strukturen bezeichnet, die sichtbar werden, wenn Eisenmeteoriten vom Typus Oktaedrit angeschliffen, poliert und mit methanolhaltiger Salpeters?ure ange?tzt werden. Benannt wurden die Strukturen von Karl Franz Anton von Schreibers nach dem ?sterreichischen Naturwissenschaftler Alois von Beckh-Widmanst?tten (1754–1849). Widmanst?tten hatte die Struktur 1808 in Wien an einer ge?tzten Fl?che des Eisenmeteoriten von Hraschina entdeckt, publiziert wurde dies aber erst 1820 von Schreibers.
Koller will assist in arranging shipping. All costs associated are the responsibility of the buyer.
Contract: Your Bid is a binding and legally enforcable contract.
Payment: Koller accepts only bank transfer for payment. Payment is due upon the close of the auction.
Shipping Terms: Koller will assist in arranging shipping. All costs associated are the responsibility of the buyer.
Buyer's Premium: 2.1 In addition to the bid price, the Purchaser must pay a surcharge of 25 % on such bid price.
2.2 If the winning bid is placed in the course of an internet live online auction ("Online Auction"), the surcharges are subject to the conditions published on the respective Internet sites.
2.3 The Purchaser must pay Swiss value added tax ("VAT") on the surcharge. The stated percentage of the surcharge relates to the successful bid for each individual item.
2.4 The full tax is charged on all items marked * in the auction catalogue, i.e. VAT is charged on the sum of the bid price plus the surcharge for those items. The VAT will be refunded to Purchasers providing a validly stamped export declaration.
2.5 The Purchaser agrees that Koller also receives a commission from the Seller.
Taxes: The Purchaser must pay Swiss value added tax ("VAT") on the surcharge. The stated percentage of the surcharge relates to the successful bid for each individual item.
Condition Reports: 3.1 The items are auctioned in the condition existing at the time of the successful bid.
3.2 The items are described to the best of our knowledge and belief. However, Koller cannot accept any liability for the details provided in the catalogue. The items can be inspected during the preview. The Purchaser is therefore invited to inspect an item prior to the auction and, possibly with the support of an independent specialist advisor, to form its own opinion of the correspondence between the lot and the catalogue description. For the specifications of the items the print edition of the catalogue in the German language (including any later amendments) shall be exclusively applicable. Koller reserves the right to call in experts or specialists of its choice to give an opinion and to rely upon that opinion. Koller cannot be held liable for the correctness of such opinions. Neither any such expert opinions or reports, nor the descriptions of items provided by Koller or other statements pertaining to an item (including statements pertaining to the value thereof) constitute explicit or implicit warranties.
3.3 Subject to Clause 4 below, no guarantee or warranty whatsoever is given in respect of legal and material defects. The liabilities of the Seller vis-à-vis the Purchaser are limited to the same extent as the liabilities of Koller vis-à-vis the Purchaser.
