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

Dimensions not including bail: Approximately 13.5 mm x13.5 mm x 2.75 mm 

Dimensions including bail: Approximately 23.65 mm x13.5 mm x 5.93 mm

Center Stone: Howardite

Description: Pendant with center stone fashioned from the NWA 11899 Howardite HED meteorite and set in 925 Sterling Silver. Silver Chain is available.

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, membrane shipping/storage box, & signed Certificate of Authenticity.

* .925 Sterling Silver chain is available.

Northwest Africa 11899
Basic information	Name: Northwest Africa 11899      This is an OFFICIAL meteorite name. Abbreviation: NWA 11899  Observed fall: No Year found: 2017 Country: Mali  Mass: 16 kg
Classification   history:	Recommended:   Howardite    This is 1 of 356 approved meteorites classified as Howardite.   [show all] Search for other: Achondrites, HED achondrites, and Howardites
Comments:	Approved 31 Aug 2018
Writeup	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 Fs25.1±2.5Wo3.6±2.2, Fe/Mn=30±2, n=10; eucrite low-Ca pyroxene Fs49.7±5.2Wo4.8±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: Mali Date: P 2017 Mass (g): 16000 Pieces: Many Class: Howardite Shock stage: high Weathering grade: low Ferrosilite (mol%): 25.1±2.5, 49.7±5.2 Wollastonite (mol%): 3.6±2.2, 4.8±2.8 Classifier: C. Agee, UNM Type spec mass (g): 22.8 Type spec location: UNM Main mass: Dustin Dickens Comments: Field name DD-26; submitted by C. Agee, UNM