On Offer: Pendant with center stone fashioned from the NWA 10962 Eucrite HED meteorite and set in 925 Sterling Silver.

Dimensions not including bail: Approximately 19.8 mm x 19.8 mm x 2.55 mm

Dimensions including bail: Approximately 33 mm x 19.8 mm x 3.48 mm

Center Stone: Eucrite, unbrecciated

Official name: NWA 10962

Parent Body: Vesta or Vestoid

Description: Pendant with center stone fashioned from the NWA 10962 Eucrite unbrecciated meteorite and set in 925 Sterling Silver. * Silver Chain is not included.

The HED Meteorites: The HED meteorite group is so named for the three types of meteorites that comprise the group; Howardite, Eucrite and Diogenite. The Eucrite and Diogenite are meteorites with distinct chemistries, while the Howardite is a mix of the Eucrite and Diogenite material. The HEDs are differentiated achondritic meteorites, thought to originate from the large differentiated asteroid 4 Vesta. The Vesta parent body origin for the HED clan is considered to have been conclusively established for many years. However, some leading researchers are now starting to suspect they originated from a larger Vesta-like asteroid that was blown apart long ago. This is because we also find a class of iron meteorites with the exact isotopic genetics as the HED clan, leading some researchers to conclude the HED meteorites come from a larger Vestan-like body that was in a cataclysmic collision that liberated part or all of its metal core. This hypothesis does not rule out the possibility that all of the material including Vesta and the Vestoids and the HED meteorites were once part of a much larger dwarf planet prior to this collision.

What you get: Pendant with center stone fashioned from the NWA 10962 Eucrite HED meteorite and set in 925 Sterling Silver, membrane storage/display box, & signed Certificate of Authenticity. * Silver Chain not included

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Northwest Africa 10962

Basic information

Name: Northwest Africa 10962
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10962
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 860 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	Eucrite-unbr
Recommended:			Eucrite-unbr

This is 1 of 111 approved meteorites classified as Eucrite-unbr. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 17 Dec 2016

Writeup

Writeup from MB 105:

Northwest Africa 10962 (NWA 10962)

(Northwest Africa)

Find: 2015

Classification: HED achondrite (Eucrite, unbrecciated)

History: Purchased by Fayssal Mezgouri in 2015 from a nomad in northwest Africa and sold to Dustin Dickens in 2016.

Physical characteristics: Two stones of approximately equal mass with glassy, partially oxidized fusion crust on one side of each and sand-ablated patina on the remaining surfaces.

Petrography: (Z. Guo, UWO) Medium grained igneous rock. Modal abundances and corresponding grain sizes: plagioclase 60% (400-500 μm), pyroxene 40% (300-1000 μm) and metal ~1% (100-200 μm). Magnetic susceptibility log χ (× 10^-9 m³/kg) = 3.81. Undulatory extinction is present in some plagioclase. Metal has a narrow oxide rim.

Geochemistry: Mineral composition and geochemistry: Pyroxenes: low-Ca Fs_58.6±1.4Wo_3.6±1.8(N=6), High-Ca: Fs_29.3±2.1Wo_39.9±2.4(N=9), Fe/Mn ratio of 27.3±0.8 (N=15). Plagioclase: An_89.7±0.3(N=10).

Classification: Eucrite, unbrecciated.

Specimens: 21.9 g at UWO including a thin section.

Data from:
  MB105
  Table 0
  Line 0:

Date:	2015
Mass (g):	860
Pieces:	2
Class:	Eucrite-unbr
Shock stage:	low
Weathering grade:	low
Ferrosilite (mol%):	58.6±1.4 (N=6) 29.3±2.1 (N=9)
Wollastonite (mol%):	3.6±1.8 (N=6); 39.9±2.4 (N=9)
Magnetic suscept.:	3.81
Classifier:	Z. Guo, UWO
Type spec mass (g):	21.9
Type spec location:	UWO
Main mass:	Dustin Dickens
Comments:	W0001; submitted by Audrey Bouvier

Institutions
and collections

UWO: University of Western Ontario, Department of Earth Sciences, BGS 1026, 1151 Richmond St. N, London, Ontario, Canada N6A 5B7, Canada (institutional address; updated 18 Jul 2015)