On Offer: Martian Meteorite 0.624g

Type: Nakhlite

Origin: Mars

Official name: NWA 10645

Description: A 0.624 gram crusted fragment of a beautiful and rare Martian meteorite. This is a stunning 0.624 gram specimen of a cumulate achondrite from Mars, with beautiful black crust on one side. This type of martian meteorite is known as a "Nakhlite" and was given the official name of NWA 10645. This was one of my earliest classifications.

What you get: 0.624g NWA10645 Martian 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 .

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Northwest Africa 10645Basic informationName: Northwest Africa 10645
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10645
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass: 12 g
Classification
history:Meteoritical Bulletin: MB 105 (2016) Martian (nakhlite)Recommended: Martian (nakhlite) [explanation]
This is 1 of 31 approved meteorites classified as Martian (nakhlite). [show all]
Search for other: Martian meteorites
Comments:Approved 15 May 2016Writeup
Writeup from MB 105:

Northwest Africa 10645 (NWA 10645)

(Northwest Africa)

Purchased: 2016

Classification: Martian meteorite (Nakhlite)

History: Purchased by Dustin Dickens, February 2016, from a Moroccan dealer.

Physical characteristics: The exterior is partially covered by black fusion crust. Freshly broken surfaces reveal a mixture of mm-sized dark-green pyroxene grains and interstitial cream-colored feldspar.

Petrography: (C. Agee, UNM) This meteorite has an ophitic texture consisting of 75% augite, 15% feldspar, and 5% olivine. Some augite crystals are prismatic and up to 2 mm in length. There are two feldspars present, oligoclase and alkali feldspar, no maskelynite was observed; feldspar commonly occupies interstices between augite grains. Augites show igneous zoning with Fs-rich rims, olivines are fayalitic and fairly uniform in composition. Apatite, ilmenite, and titanomagnetite were observed.

Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa 88.1 0.8, Fe/Mn=41 1, n=5; augite Fs 31.9 10.2Wo 38.9 2.1, range Fs 24.1-48.9Wo 33.3-40.5, Fe/Mn=35 2, n=10; plagioclase An 22.9 2.7Ab 73.0 3.0Or 4.1 0.6, n=4; alkali feldspar An 3.3Ab 40.4Or 56.2, n=1.

Classification: Martian (nakhlite). This is a martian meteorite based Fe/Mn of augite and olivine, and on the composition of the plagioclase. It is a nakhlite based on the high percentage of augite present. Paired with NWA 10153.

Specimens: 2.5 g including a probe mount on deposit at UNM; Dustin Dickens holds the main mass.

Data from:
MB105
Table 0
Line 0:Place of purchase:MoroccoDate:P 2016Mass (g):12Pieces:1Class:Martian (nakhlite)Shock stage:moderateWeathering grade:lowFayalite (mol%):88.1 0.8Ferrosilite (mol%):31.9 10.2Wollastonite (mol%):38.9 2.1Classifier:C. Agee, UNMType spec mass (g):2.5Type spec location:UNMMain mass:Dustin DickensComments:Field name TMS-1; submitted by C. Agee, UNMInstitutions
and collectionsUNM: Institute of Meteoritics MSC03 2050 University of Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
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Product Attributes:

Country/Region Of Manufacture: United States

Modified Item: No

Weight (lbs.): 0.50 lb

Length (in.): 12

Width (in.): 10

Height (in.): 3