4650 GM. CAMPO DEL CIELO METEORITE ; MED GRADE 5 POUNDS;
Item History and Pricing
|Country/Region of Manufacture: Argentina||Mineral: Meteorite|
WEIGHT: 4650 gm. 10.2 POUNDS; CHEAP!!7X5X3 inchesMED GRADE METEORITE this is a must see meteorite!!!! please look at pictures. ORIGIN: NORTHERN ARGENTINA /FIRST FIND IN 1576 AD . 4-6OOO YEARS OLD.
I COMBINE MULTIPLE PURCHASES TO SAVE SHIPPING COSTS!!! STAND INCLUDED! ENJOY THIS PIECE OF OUTER SPACE! VERY FEW OTHERS WILL HAVE ONE TO MATCH!!certificate of authenticity and statement of history and chemical composition are&...nbsp; furnished with every meteorite i sell. On Jul-11-09 at 16:35:03 PDT, seller added the following information: INTERNATIONAL CUSTOMERS MAY HAVE TO PAY A DUTY UPON RECEIPT OF THIS ITEM. AMOUNT WILL VARY BY INDIVIDUAL COUNTRYBasicInformation · Location: Campo del Cielo, Gran Chaco Gualamba, Argentina, about500 miles north-northwest of Buenos Aries. Latitude 27 degrees 39 minutesSouth, Longitude 61 degrees 44 minutes West. · Structural Class: Coarseoctahedrite, Og, Widmanstatten bandwidth 3.0 ±0.6 mm. · Chemical Class: GroupI, 6.68% Ni, 0.43% Co, 0.25% P, 87 ppm Ga, 407 ppm Ge, 3.6 ppm Ir. · Time ofFall: 4,000 to 6,000 years ago HistoryThe first record of the Campo was in 1576. A Spanish governor learned of the ironfrom the Indians who reportedly believed that it had fallen from heaven. Thegovernor sent an expedition under the command of one Captain de Miraval whobrought back a few pieces of a huge iron mass he called Meson de Fierro (largetable of iron). The location of the find was the Campo del Cielo (field of thesky or heaven), a fitting name for the location of a meteorite. Since theIndians believed that the irons fell from heaven the name may have come fromthe meteorites. The area is an open brush-covered plain that has little waterand no other rocks--very good country in which to locate meteorites. Structureof the Campo del Cielo TheCampo del Cielo is described as a polycrystalline coarse octahedrite. At 3 mmthe Widmanstatten bands are thicker than those at Canyon Diablo or Odessa, butstill thin enough to have the same coarse octahedrite classification. The masswas composed of large austenite crystals from 5 to 50 cm in size. On break-upthe fragments were cold worked like those at Sikhote-Alin and Gibeon. It hasbeen hypothesized that the original body was tabular in shape and broke up onentry into the atmosphere. Chemistry of the Campo del Cielo The Campo del Cielois classified in Group I, , 6.68% Ni, 0.43% Co, 0.25% P, 87 ppm Ga, 407 ppm Ge,3.6 ppm Ir. Of course, almost all of the remaining portion of the meteorite isiron. The important minerals are: · Kamacite--this iron nickel alloy makesabout 90 percent of specimens in finger size and width crystals. Neumann bandsare common. · Taenite and plessite, the other iron-nickel alloy constituentsare found at grain boundaries. · Schreibersite is uncommon. · Troilite is foundaggregates with graphite and silicates.
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