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NWA 5693 Stony Iron Pallasite Meteorite Fragment weighing 1.86g

£22.00

In stock

NWA 5693 Stony Iron Pallasite Meteorite Fragment weighing 1.86g

 

Northwest Africa 5693
Basic informationName: Northwest Africa 5693
This is an OFFICIAL meteorite name.
Abbreviation: NWA 5693
Observed fall: No
Year found: 2007
Country: (Northwest Africa)
Mass:help 70.7 g
Classification
history:
Meteoritical Bulletin:MB 107  (2018)Pallasite
Recommended:  Pallasite    [explanation]

This is 1 of 59 approved meteorites classified as Pallasite.   [show all]
Search for other: Metal-rich meteoritesPallasites

Comments:Approved 31 Aug 2018
Writeuphelp

Writeup from MB 107:

Northwest Africa 5693 (NWA 5693)

(Northwest Africa)

Purchased: 2007

Classification: Pallasite

History: The meteorite was purchased from a local meteorite dealer in Erfoud, Morocco.

Physical characteristics: Brownish, strongly altered individual lacking any fusion crust.

Petrography: The meteorite is composed of large up to 1 cm sized olivine crystals set into a matrix of iron oxides or hydroxides. Olivine is often crosscut by veins filled with brownish/reddish alteration products. No primary Fe-Ni metal was detected

Geochemistry: Olivine: Fa13.1±0.1 (Fa12.9-13.4, FeO/MnO=32-46, n=19)

Classification: Pallasite

Data from:
MB107
Table 0
Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2007
Mass (g):70.7
Pieces:1
Class:Pallasite
Shock stage:low
Weathering grade:high
Fayalite (mol%):13.1
Classifier:A. Greshake, MNB
Type spec mass (g):14.4
Type spec location:MNB
Main mass:Fabien Kuntz
Comments:Submitted by Ansgar Greshake