On Offer: 3.73g Augite-bearing Ureilite meteorite NWA11900 slice - Primitive chondrite Meteorite

Official name: NWA11900

Classification: Augite-bearing Ureilite

Description: A 3.73 gram unpolished partial slice of the Augite-bearing Ureilite Achondrite Meteorite NWA 11900. This ureilite is only one of four listed by Meteoritical Bulletin as being "Augite-bearing".

What you get: 3.73 gram NWA 11900 Augite-bearing Ureilite Meteorite Specimen as Shown, Membrane storage/display box, and signed Certificate of Authenticity.

I offer a 100% no questions asked 30 day .

SEE OFFICIAL METEORITICAL SOCIETY ENTRY BELOW

Northwest Africa 11900Basic informationName: Northwest Africa 11900
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11900
Observed fall: No
Year found: 2017
Country: Western Sahara
Mass: 457 gClassification
history:Recommended: Ureilite [explanation]
This is 1 of 475 approved meteorites classified as Ureilite. [show all]
Search for other: Achondrites, UreilitesComments:Approved 2 Sep 2018Writeup
Writeup from MB 107:

Northwest Africa 11900 (NWA 11900)

Western Sahara

Purchased: 2017

Classification: Ureilite

History: Purchased by Dustin Dickens from nomad near Dahkla in Western Sahara.

Physical characteristics: Weathered exteri; saw cut reveals an interior mosaic of green and brown crystals.

Petrography: (C. Agee, UNM) This meteorite consists of olivine, pigeonite, and augite. Ubiquitous fine-grained Fe-metal is present along grain boundaries. Elongate (100-200 m) grains of graphite are scattered throughout.

Geochemistry: (C. Agee, UNM) Olivine Fa 22.2 0.1, Fe/Mn=49 1, Cr 2O 3=0.36 0.02 (wt%), n=7; pigeonite Fs 18.6 0.3Wo 4.2 0.1, Fe/Mn=29 1, n=4; augite Fs 11.7 0.1Wo 34.9 0.1, Fe/Mn=22 1, n=3.

Classification: Augite-bearing ureilite

Specimens: 20.7 g including a probe mount on deposit at UNM, Dustin Dickens holds the main mass.

Data from:
MB107
Table 0
Line 0:Place of purchase:Western SaharaDate:P 2017Mass (g):457Pieces:1Class:UreiliteShock stage:lowWeathering grade:moderateFayalite (mol%):22.2 0.1Ferrosilite (mol%):18.6 0.3, 11.7 0.1Wollastonite (mol%):4.2 0.1, 34.9 0.1Classifier:C. Agee, UNMType spec mass (g):20.7Type spec location:UNMMain mass:Dustin DickensComments:Field name DD-27; submitted by C. Agee, UNM
<
Product Attributes:

Featured Refinements: Meteorite Slice

Weight (lbs.): 0.50 lb

Length (in.): 12

Width (in.): 10

Height (in.): 3