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Northwest Africa 14984
Basic information Name: Northwest Africa 14984
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14984
Observed fall: No
Year found: 2019
Country: Tunisia
Mass:help 15 kg
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 522 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 20 Jun 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14984 (NWA 14984)

Tieret, Tunisia

Find: 2019 Apr 3

Classification: HED achondrite (Diogenite)

History: The stone was recovered in a desert close to Tieret, Tunisia on April 3, 2019. On June 9, 2019, it was sold to a Chinese meteorite collector Zhang Bo in Shanghai. In September, 2020, Shanghai Planetarium purchased a 3 kg end cut of the stone. Zhang Bo holds the main mass.

Physical characteristics: The stone has a dark-gray to brown appearance and weighs about 15 kg. Large brownish crystals (cm-sized) are visible on its surface. Slices of the stone are dominantly composed of brown to greenish silicate crystals.

Petrography: The meteorite has an equigranular texture, and consists dominantly of orthopyroxene (90% by volume) with minor amount of interstitial plagioclase and chromite. Accessory minerals include metallic Fe and troilite.

Geochemistry: Low-Ca Pyroxene: En65±2.17Fs31.45±1.88Wo3.56±0.44; Fe/Mn=29.19±2.26 (n=6). Plagioclase: An97.17±1.37Ab2.80±1.36 (n=4).

Data from:
  MB111
  Table 0
  Line 0:
State/Prov/County:Tieret
Origin or pseudonym:desert
Place of purchase:Shanghai
Date:2019 Apr 3
Mass (g):15000
Pieces:1
Class:Diogenite
Ferrosilite (mol%):31.45±1.88 (n=6)
Wollastonite (mol%):3.56±0.44 (n=6)
Classifier:He Wenzhong, PMO
Type spec mass (g):20
Type spec location:PMO
Main mass:Zhang Bo
Comments:Submitted by Hsu W.
Institutions
   and collections		 PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Photos:
CreditPhotos
Public domain photographs:
Weibiao Hsu         
Geography:

Tunisia
Coordinates:Unknown.

Statistics:
     This is the only approved meteorite from Tieret, Tunisia
     This is 1 of 82 approved meteorites from Tunisia
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Revision
  history:
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