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Martian Meteorite 1.45g | Mars Lherzolitic Shergottite - NWA 1950

Top Meteorite

  • $ 1,740.00


 

On Offer: MARTIAN METEORITE 1.45g

Type: LHERZOLITIC SHERGOTTITE

Origin: MARS

Official name: Northwest Africa 1950

Abbreviation: NWA 1950

Description: A 1.45 gram piece of Mars ejected by a meteorite impacting the surface of the Red Planet. A 1.45 gram crusted specimen of a very rare part of the SNC group of the olivine rich martian meteorites known as a "Lherzolitic Shergottite" NWA 1959.
The igneous texture is very similar to that of the ALHA77005. Classification and mineralogy (P. Gillet, ENSL,  J.A. Barrat, UAng, M. Bohn, Ifremer): pyroxenes are pigeonite, En78Fs19Wo2-En60Fs26Wo14, and augite, En53Fs16Wo31-En45Fs14Wo41; maskelynite ranges from An57Ab41Or1 to An40Ab57Or3. The key element weight-ratios FeO*/MnO is close to 30 for pigeonite and close to 50 for olivines. Geochemistry: REE pattern similar to that of  ALHA77005 but with higher values.
Whenever possible, Top Meteorite acquires meteorites direct from the source allowing us to offer exceptional quality specimens at very reasonable prices.
What you get: 1.45g NWA 1950 Martian Meteorite Specimen with Partial Crust as shown, Membrane Storage/Display Box, signed 5x7 double sided color Certificate of Authenticity 
I offer a 100% no questions asked 15 day return policy.  
ID - NWA195020170001
SEE OFFICIAL METEORITICAL SOCIETY ENTRY BELOW
Northwest Africa 1950
Basic information Name: Northwest Africa 1950
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1950 
Observed fall: No
Year found: 2001
Country: (Northwest Africa) 
Mass: 812 g
Classification
  history:
Meteoritical Bulletin:   MB 88   (2004)   Martian (lherzolitic shergottite)
MetBase:   V. 7.7   (2006)   Shergottite-lherzolitic
Recommended:   Martian (shergottite)  

This is 1 of 161 approved meteorites (plus 1 unapproved name) classified as Martian (shergottite).   
Search for other: Martian meteorites
Writeup

Writeup from MB 88:

Northwest Africa 1950

Morocco

Found 2001 January and March

Martian meteorite (lherzolitic shergottite)

Two stones (414 and 383 g) were found in the Atlas mountains (Morocco) in 2001 January and March. The exact location of find is unknown. The meteorite is a cumulate peridotitic rock consisting of olivine (~55 vol%), low and high-Ca pyroxenes (~35 vol%) and plagioclase glass (~8 vol%). Accessory minerals include phosphates (merrillite), chromite and spinels (inclusions in olivines and pyroxenes), sulfides (pyrrhotite), and a glass rich in potassium.The igneous texture is very similar to that of the ALHA77005. Classification and mineralogy (P. Gillet, ENSL,  J.A. Barrat, UAng, M. Bohn, Ifremer): pyroxenes are pigeonite, En78Fs19Wo2-En60Fs26Wo14, and augite, En53Fs16Wo31-En45Fs14Wo41; maskelynite ranges from An57Ab41Or1 to An40Ab57Or3. The key element weight-ratios FeO*/MnO is close to 30 for pigeonite and close to 50 for olivines. Geochemistry: REE pattern similar to that of ALHA77005 but with higher values. Specimens: type specimen, 20 g, ENSL; main mass, Fectay.

Data from:
  
  Table 4
  Line 106:
Origin or pseudonym: Jules Verne
Date: Jan, Mar 2001
Mass (g): 812
Pieces: 2
Class: Martian
Classifier: Ph. Gillet, ENSL, J.-A. Barrat, UAng and M. Bohn (Ifremer)
Type spec mass (g): 20
Type spec location: ENSL

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