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Tichit 002
Basic information Name: Tichit 002
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2019
Country: Mauritania
Mass:help 253 kg
Meteoritical Bulletin:  MB 110  (2022)  Iron, IIIAB
Recommended:  Iron, IIIAB    [explanation]

This is 1 of 344 approved meteorites classified as Iron, IIIAB.   [show all]
Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 5 Dec 2021
Writeup from MB 110:

Tichit 002        18°16.217’N, 9°49.983’W

Tagant, Mauritania

Find: 30 September 2019

Classification: Iron meteorite (IIIAB)

History: A single large stone weighing 253 kg and measuring 33 × 35 × 36 cm was found on September 30, 2019, by a camel farmer named Mourtagi in the desert 40 km north of Tichit. Initially thinking that it was a gold rock, Mourtagi sent pictures of it to Moulaye Babti, who owns a company (Ste Moulaye Abdelk) in Mauritania working on gold exploration and meteorite collection with metal detectors. Interested in it, this specimen was then purchased 5 days later by Ste Moulaye Abdelk on October 5, 2019.

Physical characteristics: The exterior of the stone displays visible regmaglypts and is moderately weathered with minor fusion crust still present in some parts. A cut of the interior reveals a slightly rusted metallic surface.

Petrography: (D. Sheikh, Cascadia) This sample (2 cm by 4 cm) and photos taken from a polished surface of the main mass display a well-developed Widmanstätten pattern consistant with a medium octahedrite (Av. kamacite bandwidth: 1.0±0.2 mm, n=30). No inclusions were observed in the studied specimen.

Geochemistry: ICP-MS data, using sample of North Chile (Filomena) as standard (C. Herd, and P. Hill, UAb): Ni = 7.6, Co = 0.46 (both wt. %); Ir = 3.42, Ga = 19, Ge = 34, As = 5.6, W = 0.6, Ru = 9.0, Re = 0.28, Os = 1.9, Pt = 12.1, Cu = 153, Au = 1.19 (all µg/g). Another measurement of Co on another stone (by MSALABS, Canada) gave Co = 0.54 wt%.

Classification: IIIAB iron, medium octahedrite.

Specimens: 95 grams at Cascadia; main mass with Ste Moulaye Abdelk.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:desert
Date:30 September 2019
Mass (g):253000
Class:Iron, IIIAB
Classifier:D. Sheikh, Cascadia
Type spec mass (g):95
Type spec location:Cascadia
Main mass:Ste Moulaye Abdelk
Comments:Submitted by Daniel Sheikh
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Public domain photographs:
Daniel Sheikh                           

     Recommended::   (18° 16' 13"N, 9° 49' 59"W)

     This is 1 of 3 approved meteorites from Tagant, Mauritania
     This is 1 of 224 approved meteorites from Mauritania (plus 2 unapproved names) (plus 2 impact craters)
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