On Offer: 13.58 gram fragment of the Lodranite NWA 11901 primitive achondrite meteorite fragment

Class: Lodranite

Origin: Western Sahara

Official name: NWA 11901

Description: 13.58 gram fragment of the Primitive Achondrite Lodranite Meteorite NWA 11901. The primitive achondrites are thought to represent a transitional phase between chondrites and achondrites.

What you get: 13.58g fragment of Lodranite Meteorite NWA 11901 as shown, Membrane Storage/Display Box, signed Certificate of Authenticity

I offer a 100% no questions asked 30 day return policy.

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Northwest Africa 11901

Basic information

Name: Northwest Africa 11901
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11901
Observed fall: No
Year found: 2017
Country: Western Sahara
Mass: 662 g

Classification
history:

Recommended:

Lodranite

This is 1 of 81 approved meteorites classified as Lodranite.

Comments:

Approved 31 Aug 2018

Writeup

Writeup from MB 107:

Northwest Africa 11901 (NWA 11901)

Western Sahara

Purchased: 2017

Classification: Primitive achondrite (Lodranite)

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

Physical characteristics: Many identically appearing pieces. Weathered exterior. A saw cut reveals an interior of coarse green and brown crystals. Opaque grains are scattered throughout.

Petrography: (C. Agee, UNM) This meteorite consists primarily of olivine and Cr-diopside; low-Ca pyroxene and plagioclase are absent. Most grains are in the 1-3 mm size range.

Geochemistry: (C. Agee, UNM) Olivine Fa_11.0±0.1, Fe/Mn=38±5, Cr₂O₃=0.03±0.01 (wt%), n=4; diopside Fs_5.0±0.6Wo_41.4±2.9, Fe/Mn=14±1, Cr₂O₃=1.09±0.06 (wt%)n=7.

Classification: Lodranite, opx-absent

Specimens: 22.9 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 Sahara
Date:	P 2017
Mass (g):	662
Pieces:	Many
Class:	Lodranite
Shock stage:	low
Weathering grade:	moderate
Fayalite (mol%):	11.0±0.1
Ferrosilite (mol%):	5.0±0.6
Wollastonite (mol%):	41.4±2.9
Classifier:	C. Agee, UNM
Type spec mass (g):	22.9
Type spec location:	UNM
Main mass:	Dustin Dickens
Comments:	Field name DD-28; submitted by C. Agee, UNM