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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:
Recommended:  Diogenite    [explanation]

This is 1 of 510 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 Meteoritical Bulletin, no. 111, in preparation (2022)
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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 81 approved meteorites from Tunisia

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