NWA 7716 Pallasite Meteorite 3.7 gram windowed fragment with visible olivine

Description

NORTHWEST AFRICA 7716
PALLASITE METEORITE
3.7 GRAM WINDOWED FRAGMENT
VISIBLE OLIVINE CRYSTALS
OFFICIAL CLASSIFICATION DATA SOURCE:
The Meteoritical Society
International Society for Meteoritics and Planetary Science
Lunar and Planetary Institute
Meteoritical Bulletin Database
Northwest Africa 7716
Basic information
Name:
Northwest Africa 7716
This is an OFFICIAL meteorite name.
Abbreviation:
NWA 7716
Observed fall:
No
Year found:
2012
Country:
(Northwest Africa)
Mass:
2.52 kg
Classification
history:
Meteoritical Bulletin:
MB102
(2014)
Pallasite
Recommended:
Pallasite
This is 1 of 42 approved meteorites classified as Pallasite
Comments:
Approved 14 Nov 2013
Writeup
Writeup from MB 102
Northwest Africa 7716
(NWA 7716)
(Northwest Africa)
Purchased: 2012 Jan
Classification: Pallasite
History
: Purchased by John Higgins in January 2012 from a dealer in Ouarzazate, Morocco.
Physical characteristics
: A group of 40 small weathered stones.
Petrography
: (A. Irving and S. Kuehner,
UWS
) This extensively weathered specimen now consists of fragments of fresh olivine (with rare troilite inclusions) cross-cut by veinlets of iron hydroxides containing some remnant kamacite and taenite.
Geochemistry
: Olivine (Fa
13.7±0.1
, n = 3; FeO/MnO = 39-42).
Classification
: Pallasite.
Specimens
: 40 g of material and one polished thin section are at
UWB
. The remaining material is held by Mr. J. Higgins.
Data from:
MB102
Table 0
Line 0:
Place of purchase:
Ouarzazate
Date:
P 2012 Jan
Mass (g):
2517
Pieces:
many
Class:
Pallasite
Shock stage:
low
Weathering grade:
W4
Fayalite (mol%):
13.7±0.1 (n = 3)
Classifier:
A. Irving and S. Kuehner, UWS
Type spec mass (g):
40
Type spec location:
UWB
Main mass:
J. Higgins
Comments:
JH13-2; submitted by A. Irving
Institutions
and collections
University of Washington, Department of Earth and Space Sciences
GUARANTEED AUTHENTICITY
Member of the Meteoritical Society & International Meteorite Collectors Association #9822 The authenticity of this meteorite has a 100% guarantee. Signed Certificate of Authenticity Included. First class delivery and provenance provided exhibiting important details of the classification & petrography.
1cm scale cube for reference purposes only.
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