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Eucrite Monomict Full Slice 35.8g | HED NWA 8555 | Eucrite-mmict

Brought to you by: Top Meteorite

  • $ 1,050.00


On Offer: 35.8 gram Eucrite Monomict | Full Slice ~3.53mm thickness, excellent surface area per gram | NWA 8555
Type: Eucrite Monomict
Origin: Morocco
Official name: NWA8555 
Description: 35.8 gram full unpolished slice of monomict eucrite NWA 8555. Full unpolished / untreated slice measures 96.98mm x 59.08mm x 2.71mm
What you get: 35.8 NWA 8555 Eucrite Meteorite Specimen as Shown, Storage/Display Box, & signed Certificate of Authenticity.
I offer a 100% no questions asked 15 day return policy.
ID - NWA855520160001
Northwest Africa 8555
Basic information Name: Northwest Africa 8555
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8555 
Observed fall: No
Year found: 2013
Country: (Northwest Africa) 
Mass:help 2.92 kg
Classification
  history:
Recommended:   Eucrite-mmict    [explanation]

This is 1 of 187 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: AchondritesEucrites, and HED achondrites
Comments: Approved 18 Oct 2014
Writeuphelp
Writeup from MB 103: 

Northwest Africa 8555 (NWA 8555)

(Northwest Africa)

Purchased: 2013

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by Brahim Tahiri from a Moroccan hunter and sent to his partner Sean Tutorow for classification, April, 2013.

Physical characteristics: Two matching stones, 1729 g and 1198 g. Irregular weathered exterior. Saw cut reveals a breccia with tan lithic clasts up to 1 cm set in a dark-gray matrix.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount show basaltic eucrite clasts cross-cut by shock melt veins, pyroxenes show exsolution lamellae. Ubiquitous chromite, ilmenite, and silica, some barite found. Moderate weathering.

Geochemistry: (C. Agee and N. Muttik, UNM) Low-Ca pyroxene Fs60.7±2.2Wo4.5±2.4, Fe/Mn=33±1, n=12; high-Ca pyroxene Fs29.3±1.5Wo41.1±1.6, Fe/Mn=33±1, n=12; plagioclase An89.0±1.2, n=8.

Classification: Achondrite (monomict eucrite)

Specimens: 59.78 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass.

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase: Morocco
Date: P 2013
Mass (g): 2923.78
Pieces: 1
Class: Eucrite-mmict
Weathering grade: moderate
Classifier: C. Agee, UNM
Type spec mass (g): 59.78
Type spec location: UNM
Main mass: Sean Tutorow
Comments: Field name G565; submitted by C. Agee, UNM
Institutions
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)

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