Meteoritical Bulletin: Entry for Northwest Africa 1695

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Northwest Africa 1695

Basic information

Name: Northwest Africa 1695
This is an OFFICIAL meteorite name.
Abbreviation: NWA 1695
Observed fall: No
Year found: 2001
Country: (Northwest Africa)
Mass: 614 g

Classification
history:

Meteoritical Bulletin:	MB 87	(2003)	Howardite
MetBase:	v. 7.1	(2006)	Howardite
Recommended:			Howardite [explanation]

This is 1 of 446 approved meteorites classified as Howardite. [show all]
Search for other: Achondrites, HED achondrites, and Howardites

Writeup

Writeup from MB 87:

Northwest Africa 1695

Morocco

Found 2001

Achondrite (howardite)

A 614 g, fully crusted stone, was purchased in Morocco in 2001. Classification and mineralogy (J. Wittke and T. Bunch, NAU): clast size, <0.5 cm; clast modal analyses on 14 cm² yield: subophitic basalts with large areas of symplectite crystallization, 80 vol%; diogenites, 9 vol%; fine-grained (< 0.2 mm) subophitic basalts, 6 vol%; other, 5 vol%. Orthopyroxene, Fs17–26 with exsolved pigeonite, Fs28–32Wo7–10. Common, Fe-rich subophitic clasts of plagioclase, An78, and ferroaugite, Fs40Wo39En21, with symplectic mesostasis of fayalite, ferrohedenbergite, sulfides, and SiO2 glass. Shock stage, S1, weathering grade, W1. Specimens: main mass with buyer, type specimen, 21 g with one thin section, NAU.

Data from:
  MB87
  Table 8
  Line 234:

Place of purchase:	Morocco
Date:	P 2001
Mass (g):	614
Pieces:	1
Class:	How
Classifier:	T. Bunch and J. Wittke, NAU
Type spec mass (g):	21
Main mass:	purchaser

Institutions
and collections

NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)

Catalogs:

References:

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

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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