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Achondrite Eucrite I 0.37g partial slice | NWA7385

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  • $ 35.00


 
On Offer: 0.37 gram Eucrite HED Achondrite - Very Limited Availability  | Partial Slice of NWA 7385
Type: Achondrite Eucrite.
Official name: NWA 7385
Description: 0.37 gram partial slice of very rare Eucrite NWA  7385. This HED Achondrite is very rare with a extremely limited availability. It has a Total Known Weight (TKW) of just 51.7g, with over 11 grams of the 51.7g having been donated to the classifying institution. That leaves only ~40g available to researchers and collectors.
What you get: 0.37 NWA 7385 Eucrite Meteorite Specimen as Shown, Membrane Storage/Display Box, & signed 5x7 double sided color Certificate of Authenticity.
I offer a 100% no questions asked 30 day return policy.
ID: NWA738520170001
SEE OFFICIAL METEORITICAL SOCIETY ENTRY BELOW
Northwest Africa 7385
Basic information Name: Northwest Africa 7385
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7385 
Observed fall: No
Year found: 2012
Country: Morocco 
Mass:help 51.7 g
Classification
  history:
Meteoritical Bulletin:   MB 101   (2013)   Eucrite
Recommended:   Eucrite    [explanation]

This is 1 of 347 approved meteorites classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 12 Sep 2012
Writeuphelp
Writeup from MB 101: 

Northwest Africa 7385 (NWA 7385)

Morocco

Purchased: May 2012

Classification: HED achondrite (Eucrite)

History: Purchased by Sean Tutorow from Morocco, May 2012.

Physical characteristics: Single stone, with abraded black fusion crust, saw cut reveals fresh, light-gray, fine-grained texture.

Petrography: C. Agee, UNM) Microprobe examination of a polished mount shows a protogranular texture with approximately 50% pyroxene and 45% plagioclase, nearly all pyroxenes with exsolution lamellae, many fractures suggesting high shock. Accessory silica, chromite, ilmenite, troilite, and iron metal with very low nickel content.

Geochemistry: (C. Agee and M. Spilde, UNM) EMPA. Pyroxene Fs51.0±13.1Wo14.2±15.6, Fe/Mn=31±1, n=32, with equilibrated trend Fs61.3Wo1.7 to Fs26.0Wo44.4; plagioclase Or0.4±0.2Ab10.4±0.8An89.1±0.6, n=6.

Classification: Achondrite (Eucrite). Equilibrated main group eucrite. Slightly weathered.

Specimens: 11.86 g including a probe mount on deposit at UNM; Sean Tutorow holds the main mass.

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase: Morocco
Date: P May 2012
Mass (g): 51.69
Pieces: 1
Class: Eucrite
Ferrosilite (mol%): 51.0±13.1
Wollastonite (mol%): 14.2±15.6
Classifier: C. Agee, UNM
Type spec mass (g): 11.86
Type spec location: UNM
Main mass: Sean Tutorow
Comments: Submitted by C. Agee

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