16.04g CR2 Carbonaceous Chondrite Meteorite Slice I NEA 111

Top Meteorite

$ 560.00

On Offer: 16.04g slice of CR2 I NEA 111

Dimensions: 47.41mm x 39.05mm x 4.3mm

Official name: NEA 111

Type: CR2 Carbonaceous Chondrite

Origin: Libya

Description: 16.04 gram slice of CR2 carbonaceous chondrite NEA 111. The CR2 carbonaceous chondrites were altered by extraterrestrial water on their parent asteroid. This is evidenced by chondrules and silicates such as olivine, pyroxene, and feldspar that have been converted into hydrous minerals such as serpentines and saponite. Much of the metal that can be seen within the chondrules, between the grain boundaries and decorating (surrounding) the chondrules has been converted into iron-oxides by this same endogenous aqueous (water) alteration process where this meteorite was formed as part of its larger parent carbonaceous asteroid. This can be seen in the BSE images below that were taken by Dustin Dickens using the electron microprobe during its classification by LMAC at the University of Colorado Boulder's EPMA lab.

What you get: 16.04 gram CR2 NEA 111 Meteorite specimen as shown, membrane storage/display box, & signed Certificate of Authenticity.

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

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Northeast Africa 111

Basic information

Name: Northeast Africa 111
This is an OFFICIAL meteorite name.
Abbreviation: NEA 111
Observed fall: No
Year found: 2023
Country: Libya
Mass: 470 g

Classification
history:

Recommended:

CR2

This is 1 of 192 approved meteorites classified as CR2.

Comments:

Approved 18 Sep 2025

Writeup

Writeup from MB 114:

Northeast Africa 111 (NEA 111)

Libya

Purchased: 2023 Oct

Classification: Carbonaceous chondrite (CR2)

History: Purchased by Isaac Schroeder in October 2023 from a meteorite hunter in Libya.

Physical characteristics: A single dark brown pyramidal shaped stone displaying an exterior surface dimpled with excavated chondrules. Saw cut reveals a dark brown interior with many brown and beige colored chondrules of various sizes and several bright millimeter sized metal blebs.

Petrography: (D. Dickens, LMAC ) Examination of a polished microprobe mount shows abundant large metal-decorated type IAB, IA, and IB magnesian chondrules and chondrule fragments. A single ~2 mm metal-decorated BP chondrule, and a single type IIAB FeO-rich chondrule were observed. Chondrules and chondrule fragments are set in a fine grained metal-rich matrix. Most of the metal, which makes up ~30% of the meteorite, has been oxidized. Rare unaltered kamacite blebs and sulfides are found within chondrules and throughout the matrix. No CAIs were observed.

Geochemistry: (D. Dickens, LMAC) Olivine type I chondrules: Fa_2.5±1.0, Cr₂O₃=0.54±0.15, (n=12); Olivine type II chondrules: Fa_25.5±5.1, (n=3); low Ca pyroxene Fs_3.9±2.4Wo_0.5±0.2, (n=8). All wt%. Analysis of matrix with defocused beam gives FeO=36.7, analytical total 86.3±5 (N-3) wt%, low analytical totals infer the presence of hydrous phases within the matrix.

Classification: Carbonaceous chondrite (CR2)

Specimens: Type specimen of 20 g at TCU. Mian mass with Issac Schroeder and anonomous collector.

Data from:
  MB114
  Table 0
  Line 0:

Place of purchase:	Libya
Date:	P 2023 Oct
Mass (g):	470
Pieces:	1
Class:	CR2
Shock stage:	low
Weathering grade:	moderate
Fayalite (mol%):	2.5±1.0, 25.5±5.1
Ferrosilite (mol%):	3.9±2.4
Wollastonite (mol%):	0.5±0.2
Classifier:	D. Dickens, LMAC
Type spec mass (g):	20
Type spec location:	TCU
Main mass:	Isaac Schroeder and anonomous collector
Comments:	Field name IS03; submitted by Dustin Dickens

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