Description: On Offer: 213.1g Diogenite HED achondrite meteorite Official name: NWA 16081 Type: Diogenite Parent Body: Vesta or Vestoid Description: 213.1 gram specimen of an amazing diogenite with beautiful light green orthopyroxene crystals, milky white plagioclase, and black shock veins throughout the meteorite. This amazing specimen retains some of its fresh black fusion crust that was created when it was engulfed in a cone of super heated plasma during atmospheric transit. 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: 213.1 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 16081Basic informationName: 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 This is 1 of 515 approved meteorites classified as Diogenite.[show all] Search for other: Achondrites, Diogenites, and HED achondrites Comments:Approved 21 Aug 2023WriteupWriteup from MB 112: Northwest Africa 16081 (NWA 16081)NigerPurchased: January 2023Classification: 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:MauritaniaDate:P January 2023Mass (g):419Pieces:3Class:DiogeniteShock stage:moderateWeathering grade:lowFerrosilite (mol%):24.0±0.5Wollastonite (mol%):2.2±1.2Classifier:D. Dickens, CCMS and R. G. Mayne, TCUType spec mass (g):22.3Type spec location:TCUMain mass:J. EislerComments:Field name TM01; submitted by D. Dickens; submitted by Dustin DickensInstitutions and collectionsTCU: 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)
Price: 1740 USD
Location: Loveland, Colorado
End Time: 2024-09-10T03:50:08.000Z
Shipping Cost: 0 USD
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Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
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