On Offer: Pendant with center stone fashioned from the NWA 11899 Howardite HED meteorite and set in 925 Sterling Silver.

Dimensions: Approximately 22.7mm x 22.7mm x 2.63mm (Not including bail).

Dimensions including bail: Approximately 34.5mm x 22.7mm x 2.63mm

Center Stone: Howardite

Official name: NWA 11899

Parent Body: Vesta or Vestoid

Description: Pendant with center stone fashioned from the NWA 11899 Howardite HED 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 11899 Howardite HED meteorite and set in 925 Sterling Silver. ( Silver Chain not included), membrane storage/display box, and signed Certificate of Authenticity.

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Northwest Africa 11899Basic informationName: Northwest Africa 11899
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11899
Observed fall: No
Year found: 2017
Country: Mali
Mass: 16 kgClassification
history:Recommended: Howardite [explanation]
This is 1 of 356 approved meteorites classified as Howardite. [show all]
Search for other: Achondrites, HED achondrites, and HowarditesComments:Approved 31 Aug 2018Writeup
Writeup from MB 107:

Northwest Africa 11899 (NWA 11899)

Mali

Purchased: 2017

Classification: HED achondrite (Howardite)

History: Purchased by Dustin Dickens from Nomad in Mali.

Physical characteristics: Many identically appearing pieces. Fusion crusted exterior. A saw cut reveals a breccia with light and dark clasts set in light-brown matrix.

Petrography: (C. Agee, UNM) This meteorite is a polymict breccia consisting of approximately 60% diogenite and 40% eucrite clasts. Accessory Fe-Ni metal, Fe-sulfide, and silica observed.

Geochemistry: (C. Agee, UNM) diogenite low-Ca pyroxene Fs 25.1 2.5Wo 3.6 2.2, Fe/Mn=30 2, n=10; eucrite low-Ca pyroxene Fs 49.7 5.2Wo 4.8 2.8, Fe/Mn=29 2, n=7;.plagioclase AN93.1 1.2, n=7.

Classification: Howardite

Specimens: 22.8 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:MaliDate:P 2017Mass (g):16000Pieces:ManyClass:HowarditeShock stage:highWeathering grade:lowFerrosilite (mol%):25.1 2.5, 49.7 5.2Wollastonite (mol%):3.6 2.2, 4.8 2.8Classifier:C. Agee, UNMType spec mass (g):22.8Type spec location:UNMMain mass:Dustin DickensComments:Field name DD-26; submitted by C. Agee, UNM
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Product Attributes:

Country/Region Of Manufacture: Mali

Featured Refinements: Meteorite Pendant

Weight (lbs.): 0.50 lb