Meteoritical Bulletin: Entry for Northwest Africa 7777

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 15 Apr 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 7777

Basic information

Name: Northwest Africa 7777
This is an OFFICIAL meteorite name.
Abbreviation: NWA 7777
Observed fall: No
Year found: 2012
Country: Morocco
Mass: 1352 g

Classification
history:

Meteoritical Bulletin:	MB 102	(2013)	H3.8
Recommended:			H3.8 [explanation]

This is 1 of 78 approved meteorites classified as H3.8. [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 27 Apr 2013

Writeup

Writeup from MB 102:

Northwest Africa 7777 (NWA 7777)

Morocco

Purchased: 2012

Classification: Ordinary chondrite (H3.8)

History: Purchased by Sean Tutorow from a Moroccan meteorite dealer, 2012.

Physical characteristics: Single stone, smooth weathered fusion crust, sawn reveals chondrules and metal grains set in a dark matrix.

Petrography: (C. Agee, UNM): Microprobe examination of a polished mount shows numeous unequilibrated PO, PP, POP chondrules.

Geochemistry: (C. Agee and L. Burkemper, UNM) Olivine Fa_20.0±2.6, Fe/Mn=46±7, n=11; low-Ca pyroxene Fs_12.6±6.4Wo_1.2±1.3, Fe/Mn=33±20, n=10, plagioclase Or_0.63Ab_30.3An_69.1.

Classification: Ordinary chondrite (H3.8), weathering grade W2.

Specimens: 21.4 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass.

Data from:
  MB102
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2012
Mass (g):	1352.3
Pieces:	1
Class:	H3.8
Weathering grade:	W2
Fayalite (mol%):	20.0±2.6
Ferrosilite (mol%):	12.6±6.4
Wollastonite (mol%):	1.2±1.3
Classifier:	C. Agee, UNM
Type spec mass (g):	21.4
Type spec location:	UNM
Main mass:	Sean Tutorow
Comments:	Submitted by C. Agee

Institutions
and collections

UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015

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

Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Mike Markowitz

Geography:

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

Direct link to this page