185.2g Diogenite I Beautiful HED Meteorite from 4 Vesta - TOP METEORITE

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Seller: top_meteorite ✉️ (689) 100%, Location: Loveland, Colorado, US, Ships to: WORLDWIDE & many other countries, Item: 155743014064 185.2g Diogenite I Beautiful HED Meteorite from 4 Vesta - TOP METEORITE.

 

On Offer: 185.2g Diogenite HED achondrite meteorite Official name: NWA 16081 Type: Diogenite Parent Body: Vesta or Vestoid Description: 185.2 gram main mass specimen of an amazing diogenite with extensive green pyroxene crystals and black shock veins throughout the meteorite. This amazing specimen has it all, a flat surface to display it as a complete specimen with fresh black fusion crust, a window into the interior and evidence of the kinetic force that ejected it in the form of shock veins.  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 have distinct mineralogies, the Howardite is a breccia of the Eucrite and Diogenite. The HEDs are differentiated achondritic meteorites thought to originate from Vesta, or a smaller Vesta-like asteroid known as a vestoid.  What you get: 185.2 gram  diogenite meteorite specimen which is the main mass for the 16081 classification, as shown, & signed Certificate of Authenticity. I offer a 100% no questions asked 30 day return policy. SEE OFFICIAL METEORITICAL SOCIETY ENTRY BELOW
Northwest Africa 16081
Basic information Name:  Northwest Africa 16081      This is an OFFICIAL meteorite name. Abbreviation:  NWA 16081 Observed fall:  No Year found:  2023 Country:  Niger Mass:   419 g
Classification   history:
Recommended:   Diogenite    [explanation]
This is 1 of 515 approved meteorites classified as Diogenite.[show all] Search for other:  Achondrites,  Diogenites, and  HED achondrites
Comments: Approved 21 Aug 2023
Writeup Writeup from MB 112:

Northwest Africa 16081 (NWA 16081)

Niger

Purchased: January 2023

Classification: HED achondrite (Diogenite)

History: Purchased by J. Eisler from a meteorite dealer in Mauritania who purchased it from the finder in Niger.

Physical characteristics: Two stones of approximate equal size and one slightly smaller stone, each partially covered in black fusion crust with exposed areas showing a light colored interior with a slight green hue.

Petrography: (D. Dickens, CCMS and R. G. Mayne,  TCU ) This meteorite is composed predominately of orthopyroxene with subhedral grains of up to 1mm. Most orthopyroxene grains show some exsolution. Minor and accesory phases include plageoclase, Ti-chromite, and silica.

Geochemistry: (D. Dickens, CCMS and R. G. Mayne,  TCU ) low-Ca pyroxene: Fs24.0±0.5Wo2.2±1.2  range Fs23.9-24.5Wo1.2-4.7, FeO/MnO=28±2, ( n=8); calcic plagioclase: An82.6±0.2  range An82.4-82.7, (n=2).

Classification: HED achondrite (Diogenite)

Specimens: 20 g including probe mount at  TCU ; remainder with Mr. J. Eisler.

Data from:   MB112   Table 0   Line 0:
Place of purchase: Mauritania
Date: P January 2023
Mass (g): 419
Pieces: 3
Class: Diogenite
Shock stage: moderate
Weathering grade: low
Ferrosilite (mol%): 24.0±0.5
Wollastonite (mol%): 2.2±1.2
Classifier: D. Dickens, CCMS and R. G. Mayne, TCU
Type spec mass (g): 22.3
Type spec location: TCU
Main mass: J. Eisler
Comments: Field name TM01; submitted by D. Dickens; submitted by Dustin Dickens
Institutions    and collections TCU : Oscar E. Monnig Collection, Department of Geology, Texas Christian University, Ft. Worth, TX 76129, United States;  Website   (institutional address; updated 24 Feb 2012) TM : Geoscience Museum, Transvaal Museum, P. O. Box 413, Pretoria 0001, South Africa (institutional address; updated 3 Mar 2011)
  • Condition: New
  • Vesta: Planet
  • Amazing Meteorite: Top Meteorite

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