Meteoritical Bulletin: Entry for Northwest Africa 16736

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 13 Sep 2024
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Northwest Africa 16736

Basic information

Name: Northwest Africa 16736
This is an OFFICIAL meteorite name.
Abbreviation: NWA 16736
Observed fall: No
Year found: 2023
Country: (Northwest Africa)
Mass: 96.9 g

Classification
history:

Recommended:

Ureilite [explanation]

This is 1 of 675 approved meteorites classified as Ureilite. [show all]
Search for other: Achondrites, Ureilites

Comments:

Approved 10 Jun 2024

Writeup

Writeup from MB 113:

Northwest Africa 16736 (NWA 16736)

(Northwest Africa)

Purchased: 2023 Dec

Classification: Ureilite

Physical characteristics: A single brown stone. Cut surface reveals a brown coarse-grained interior.

Petrography: (J. Gattacceca, CEREGE) Equigranular subhedral agregate of olivine with grain size 800 µm. Metal and carbon material are found along olivine rims.

Geochemistry: Olivine Fa_19.4±0.2, CaO 0.37±0.03 wt%, Cr₂O₃ 0.38±0.09 wt%, FeO/MnO 43.4. Olivine rims are reduced down to Fa_14.7.Pyroxene Fs_16.0Wo_9.3, Al₂O₃ 0.87 wt%, Cr₂O₃ 0.54 wt%, TiO₂ 0.16 wt% (n=1).

Classification: Ureilite.

Specimens: Type specimen at CEREGE, main mass with Kuntz.

Data from:
  MB113
  Table 0
  Line 0:

Place of purchase:	Tindouf, Algeria
Date:	P 2023 Dec
Mass (g):	96.86
Pieces:	1
Class:	Ureilite
Weathering grade:	high
Fayalite (mol%):	19.4±0.2 (n=14)
Ferrosilite (mol%):	16.0 (n=1)
Wollastonite (mol%):	9.3
Magnetic suscept.:	4.42
Classifier:	J. Gattacceca, C. Sadaka, CEREGE
Type spec mass (g):	20.84
Type spec location:	CEREGE
Main mass:	Kuntz
Finder:	anonymous
Comments:	work name K581; submitted by J. Gattacceca, CEREGE

Institutions
and collections

CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 10 Jun 2023)
Kuntz: Fabien Kuntz, France; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 113, in preparation (2024)

Find references in NASA ADS:
Find references in Google Scholar:

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9921 approved meteorites from (Northwest Africa) (plus 1838 unapproved names)

Direct link to this page