Meteorite AGOUDAL, Iron Meteorite (siderite) From Crater In Atlas Mountains.
Item History & Price
| Reference Number: Avaluer:5205743 |
AGOUDAL AgoudalFound near Meknes, Atlas mountainsSideriteOctaedrite structural groupIIAB chemical groupSpecimen is a 10.99g individualCOMBINED SHIPPING : 5$ per package The work of Ibhi et al. (2013) showed, that the small lake Isli (32°13'N, 05°38'W) is in fact a impact crater, result of a meteorite fall 40.000 years ago (the Agoudal meteorite) AgoudalBasic informationName: Agoudal
This is an OFFICIAL meteorite... name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2000
Country: Morocco
Classification
history:Recommended: Iron, IIAB
Comments:Approved 27 Apr 2013WriteupWriteup from MB 102:
Agoudal 31°59.074N, 5°30.917WCentre-South, MoroccoFound: 2000Classification: Iron meteorite (IIAB)History: (H. Chennaoui Aoudjehane, M. Aboulahris, FSAC) Two small pieces of iron were collected in 2000 in the Agoudal area, High Atlas Mountains, Morocco, and sold to tourists. In September 2011, one piece was sold to a dealer in Errich, who recognized it as an iron meteorite. During the last months of 2012, systematic searching by meteorite hunters with metal detectors resulted in the discovery of a large number of meteorites, mostly small. Many pieces were collected on the surface or buried a few cm deep. The largest piece recovered was 60 kg, buried ~50 cm below the surface. On 9 February 2013, H. Chennaoui Aoudjehane, M. Aoudjehane and M. Aboulahris collected 200 g of specimens; the listed coordinates are those of the largest piece they recovered. The strewnfield is not yet clearly defined.Petrography: (L. Garvie, ASU) Decimeter-sized pieces show a coarse pattern of irregular, interlocking kamacite grains; some grains with sub-boundaries. Widmanstätten pattern not evident in the small sections studied. Grain boundaries commonly curved. Etched pieces range from shiny with well-developed Neumann bands, to pieces with a matte appearance, typical of the hatched e-structure. The shock-hatched regions show incipient recrystallization, with secondary growth of irregularly-shaped (to 1 mm) kamacite. No plessite observed. Schreibersite abundant occurring as cm-sized skeletal crystals at the centers of kamacite crystals, as rhabdites, and as a grain boundary precipitate. Rhabdites locally numerous as sharp, 10-25 µm faceted prisms. Scattered troilite nodules, to 1 cm. Troilite not surrounded by schreibersite, but instead large skeletal schreibersite is situated a few mm away. Heat-affected zone visible on some stones. Several of the smaller pieces, and especially the rounded bullet-shaped stones, have fusion crust and heated-affected zone of varying thickness; some completely recrystallized.Geochemistry: (C. Herd and G. Chen, UAb): ICP-MS data, Ni 5.5 wt%25, Co 4.1 mg/g, Ga 58 µg/g, Ir < 0.04 µg/g and Au ~ 1 µg/g.Classification: Iron, IIAB. Structurally similar to Ainsworth.Specimens: Type specimens include 2406 g, ASU; 17.5 g, UAb; 200 g, FSACData from:
MB102
Table 0
Line 0:State/Prov/County:Centre-SouthOrigin or pseudonym:High Atlas MountainsDate:2000Latitude:31°59.074'NLongitude:5°30.917'WPieces:ManyClass:Iron, IIABWeathering grade:W1Classifier:C.Herd, UAb, L. Garvie, ASU, H.Chennaoui Aoudjehane, FSACType spec mass (g):2406 g ASU; 17.5 g UAb; 200 g FSACType spec location:FSAC, ASU, UAbMain mass:ASUFinder:AnonymousComments:Submitted by H. Chennaoui Aoudjehane, L. Garvie, C. HerdInstitutions
and collectionsASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012)
FSAC: Universite Hassan II Casablanca, Faculte des Sciences Ain Chock, Departement de Géologie, BP 5366 Maârif, Casablanca, Morocco (institutional address; updated 9 Jan 2013)
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
The Sikhote-Alin meteorite is classified as an iron meteorite belonging to the chemical group IIAB and with a coarse octahedrite structure. It is composed of approximately 93%25 iron, 5.9%25 nickel, 0.42%25 cobalt, 0.46%25 phosphorus, and 0.28%25 sulfur, with trace amounts of germanium and iridium. Minerals present include taenite, plessite, troilite, chromite, kamacite, and schreibersite.
At around 10:30 am on February 12, 1947, eyewitnesses in the Sikhote-Alin Mountains, Primorye, Russia, observed a large bolide brighter than the Sun that came out of the north and descended at an angle of about 41 degrees. The bright flash and the deafening sound of the fall were observed for three hundred kilometres around the point of impact not far from Luchegorsk and approximately 440 km northeast of Vladivostok. A smoke trail, estimated at 32 km long, remained in the sky for several hours.As the meteorite traveling at a speed of about 14 km/s entered the atmosphere, it began to break apart, and the fragments fell together. At an altitude of about 5.6 km, the largest mass apparently broke up in a violent explosion. Check out my other items!!WE COMBINE SHIPPING
Payment and ShippingI combine shipping, means you will pay only one time the S&H fees regardless the quantity in the package. Usualy you will pay a total of 2$ for all your items put together in one, or two packages.I accept Paypal or bank to bank transfer.If you have any question, please contact me.
