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Iron Meteorite - AGOUDAL 17.9g Collectors specimen | IIAB Iron Meteorite

Brought to you by: Top Meteorite

  • $ 25.00


 

On Offer: AGOUDAL IIAB  Iron Meteorite - 17.9g collector's specimen with sculptured shape.

A truly special piece. This specimen was hand selected while on expedition last month in the Atlas Mountains of Morocco. Acquisition at the source allows Top Meteorite to offer the highest quality specimen(s) cherry picked onsite. The Agoudal IIAB iron meteorite displays a wide range of quality ranging from very sculpted high quality specimens with flow lines to extremely weathered pieces rusting into sheets and nearly worthless. With patience and care, the best specimens can be pulled from the bulk. Agoudal is a meteorite dear to my heart, and I have spent a great deal of time studying and writing about the impact structure and the relationship between this structure(s) and the Agoudal IIAB meteorite. I hope you enjoy it as much as I do!
I offer a 100% no questions asked 30 day return policy.  
ID: AGDL20170028
SEE OFFICIAL METEORITICAL BULLETIN DATABASE ENTRY BELLOW
Agoudal
Basic information Name: Agoudal
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite. 
Observed fall: No
Year found: 2000
Country: Morocco 
Mass:help 100 kg
Classification
  history:
Meteoritical Bulletin:   MB 102   (2014)   Iron, IIAB
Recommended:   Iron, IIAB    

This is 1 of 131 approved meteorites classified as Iron, IIAB.   

Comments: Approved 27 Apr 2013
Writeuphelp
Writeup from MB 102

Agoudal        31°59.074’N, 5°30.917’W

Centre-South, Morocco

Found: 2000

Classification: 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.

Physical characteristics: Total mass is >100 kg. Hundreds of small pieces (1-100 g), many 100-1000 g, and a few pieces >1 kg, have been recovered. The majority of collected material occurs as 2-5 cm, irregularly shaped shrapnel pieces. Most pieces have a thin weathering rind. Some smaller bullet-shaped (~cm-sized) fragments are rounded, showing well-developed fusion crust.

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 ε-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%, Co 4.1 mg/g, Ga 58 μg/g, Ir < 0.04="" μg/g="" and="" au="" ~="" 1="">

Classification: Iron, IIAB. Structurally similar to Ainsworth.

Specimens: Type specimens include 2406 g, ASU; 17.5 g, UAb; 200 g, FSAC

Other namesThis meteorite has been sold and traded under the name "Imilchil" 

Data from:
  MB102
  Table 0
  Line 0:
State/Prov/County: Centre-South
Origin or pseudonym: High Atlas Mountains
Date: 2000
Latitude: 31°59.074'N
Longitude: 5°30.917'W
Mass (g): >100 kg
Pieces: Many
Class: Iron, IIAB
Weathering grade: W1
Classifier: C.Herd, UAb, L. Garvie, ASU, H.Chennaoui Aoudjehane, FSAC
Type spec mass (g): 2406 g ASU; 17.5 g UAb; 200 g FSAC
Type spec location: FSAC, ASU, UAb
Main mass: ASU
Finder: Anonymous
Comments: Submitted by H. Chennaoui Aoudjehane, L. Garvie, C. Herd
Institutions
   and collections
ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; (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; (institutional address; updated 17 Oct 2011)

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