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Eucrite Unb. 7.7g Partial Slice - HED NWA 10962

Eucrite Unb. 7.7g Partial Slice - HED NWA 10962

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  • $ 223.00


On Offer: 7.7 gram Eucrite Unb. I Partial Slice,  ~3mm thickness, excellent surface area per gram | NWA 10962 
Type: Eucrite Unbrecciated.
Origin: Vestan like celestial body
Official name: NWA10962 
Description: 7.7 gram partial unpolished slice of unbrecciated eucrite NWA 10962. Partial unpolished / untreated slice at approx. 3mm thickness.
What you get: 7.7 NWA 10962 Eucrite Meteorite Specimen as Shown, Membrane Storage/Display Box, & signed Certificate of Authenticity.
I offer a 100% no questions asked 30 day return policy.
SEE OFFICIAL METEORITICAL BULLETIN DATABASE ENTRY BELLOW
Northwest Africa 10962
Basic information Name: Northwest Africa 10962
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10962 
Observed fall: No
Year found: 2015
Country: (Northwest Africa) 
Mass:"https://www.lpi.usra.edu/meteor/notes.php?note=16">help 860 g
Classification
  history:
Meteoritical Bulletin:   MB 105   (2016)   Eucrite-unbr
Recommended:   Eucrite-unbr    [explanation]

This is 1 of 73 approved meteorites classified as Eucrite-unbr.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 17 Dec 2016
Writeuphelp
Writeup from MB 105: 

Northwest Africa 10962 (NWA 10962)

(Northwest Africa)

Find: 2015

Classification: HED achondrite (Eucrite, unbrecciated)

History: Purchased by Fayssal Mezgouri in 2015 from a nomad in northwest Africa and sold to Dustin Dickens in 2016.

Physical characteristics: Two stones of approximately equal mass with glassy, partially oxidized fusion crust on one side of each and sand-ablated patina on the remaining surfaces.

Petrography: (Z. Guo, UWO) Medium grained igneous rock. Modal abundances and corresponding grain sizes: plagioclase 60% (400-500 μm), pyroxene 40% (300-1000 μm) and metal ~1% (100-200 μm). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.81. Undulatory extinction is present in some plagioclase. Metal has a narrow oxide rim.

Geochemistry: Mineral composition and geochemistry: Pyroxenes: low-Ca Fs58.6±1.4Wo 3.6±1.8 (N=6), High-Ca: Fs 29.3±2.1Wo39.9±2.4 (N=9), Fe/Mn ratio of 27.3±0.8 (N=15). Plagioclase: An89.7±0.3 (N=10).

Classification: Eucrite, unbrecciated.

Specimens: 21.9 g at UWO including a thin section.
Data from:
  MB105
  Table 0
  Line 0:
Date: 2015
Mass (g): 860
Pieces: 2
Class: Eucrite-unbr
Shock stage: low
Weathering grade: low
Ferrosilite (mol%): 58.6±1.4 (N=6) 29.3±2.1 (N=9)
Wollastonite (mol%): 3.6±1.8 (N=6); 39.9±2.4 (N=9)
Magnetic suscept.: 3.81
Classifier: Z. Guo, UWO
Type spec mass (g): 21.9
Type spec location: UWO
Main mass: Dustin Dickens
Comments: W0001; submitted by Audrey Bouvier
ID - NWA109622018001
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