Meteoritical Bulletin: Entry for Northwest Africa 1701

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Northwest Africa 1701

Basic information

Name: Northwest Africa 1701
This is an OFFICIAL meteorite name.
Abbreviation: NWA 1701
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass: 225 g

Classification
history:

Meteoritical Bulletin:	MB 87	(2003)	LL6 or LL5-imp melt breccia
MetBase:	v. 7.1	(2006)	LL5
Recommended:			LL5 [explanation]

This is 1 of 3204 approved meteorites (plus 1 unapproved name) classified as LL5. [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Writeup

Writeup from MB 87:

Northwest Africa 1701

Morocco

Found 2002 spring

Ordinary chondrite (LL5, impact melt breccia)

A dark brown stone of 225 g was bought in Erfoud (Morocco) by M. Chinellato (MChin). Classification and mineralogy (G. Pratesi, V. Moggi Cecchi, MSP): composed of fine-grained and coarse-grained lithologies. Fine-grained area has a recrystallization texture with few grains of residual metal and olivine in a matrix of feldspathic glass (An31.1Ab54.7), containing very fine grained (10 µm) olivine and pyroxene crystals, rimmed by fringes of metal pools and droplets. Pyroxenes in matrix are zoned, bronzite cores, En86.1Wo1.9 to pigeonite rims, En66.2Wo10.7. The coarse-grained portion presents a typical chondritic texture: olivine, Fa27.2, pyroxene, En22.6Wo1.6, metal and troilite. Terrestrial weathering grade W2; shock stage S4. Specimens: main mass, MChin; type specimen, 20.4 g, and thin section, MSP.

Data from:
  MB87
  Table 8
  Line 238:

Place of purchase:	Erfoud
Date:	P Mar 2002
Mass (g):	225.0
Pieces:	1
Class:	LL6
Classifier:	V. Moggi Cecchi and G. Pratesi, MSP
Type spec mass (g):	20.4
Main mass:	MChin

Institutions
and collections

MSP: Museo di Scienze Planetarie, Via Galcianese 20/H, 59100 Prato, Italy, Italy; Website (institutional address; updated 22 Oct 2022)
MChin: Matteo Chinellato, Via Triestina, 126/A-30030 Tessera, Venezia, Italy; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 87, MAPS 38, A189-A248 (2003)

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Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Don Edwards
Matteo Chinellato
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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