-40%

Meteorite: 20.81 gram thin NWA 13187 martian shergottite slice

$ 216.48

Availability: 100 in stock
  • Item must be returned within: 14 Days
  • Refund will be given as: Money Back
  • Condition: New
  • Restocking Fee: No
  • All returns accepted: Returns Accepted
  • Return shipping will be paid by: Buyer

    Description

    HI all!
    My name is Mark Lyon, and I’m a member of the International Meteorite Collectors Association, member number 6752. My business model is to buy in bulk and turn over inventory quickly (often through no-reserve auctions) giving you the best possible prices.
    When you finish looking at this, please look at my other no reserve sales and auctions, and feel free to contact me if you don't see exactly what you are looking for.
    Up for sale here is a  20.81 gram NWA 13187 martian shergottite  slice.
    I will be on vacation so this item will ship out the Friday after auction closes.
    Here is what the metbull says about it.
    Northwest Africa 13187
    Basic information
    Name:
    Northwest Africa 13187
    This is an OFFICIAL meteorite name.
    Abbreviation:
    NWA 13187
    Observed fall:
    No
    Year found:
    2019
    Country:
    (Northwest Africa)
    Mass:
    1600 g
    Classification
    history:
    Recommended:
    Martian (shergottite)
    [explanation]
    This is 1 of 249 approved meteorites (plus 1 unapproved name) classified as Martian (shergottite).
    [show all]
    Search for other:
    Martian meteorites
    Comments:
    Approved 29 Feb 2020
    Writeup
    Writeup from MB 109:
    Northwest Africa 13187
    (NWA 13187)
    (Northwest Africa)
    Purchased: 2019 Sep
    Classification: Martian meteorite (Shergottite)
    History
    : Purchased by
    Mark
    Lyon
    in September 2019 from a Moroccan dealer. Some of this material was subsequently sold to Mike Fleeman and Roberto Vargas.
    Petrography
    : (A. Irving,
    UWS
    and P. Carpenter,
    WUSL
    ) Diabasic texture. Composed predominantly of zoned clinopyroxene and maskelynite with accessory ulvöspinel (some Cr-bearing), ilmenite, silica polymorph, merrillite, pyrrhotite and minor secondary calcite.
    Geochemistry
    : Subcalcic augite cores (Fs
    20.3-23.3
    Wo
    36.2-32.0
    , FeO/MnO = 28-29, N = 4), ferroan pigeonite rims (Fs
    52.4-59.2
    Wo
    14.2-19.7
    , FeO/MnO = 36-39, N = 4), maskelynite (An
    50.5-57.2
    Or
    1.9-0.7
    , N = 3).
    Classification
    : Shergottite (diabasic).
    Specimens
    : 20.1 g including one polished thin section at
    UWB
    ; remainder held by Mr. M.
    Lyon
    , Mr. M. Fleeman (550 g) and Mr. R. Vargas (50 g).
    Data from:
    MB109
    Table 0
    Line 0:
    Place of purchase:
    Morocco
    Date:
    P 2019 Sep
    Mass (g):
    1600
    Pieces:
    2
    Class:
    Martian (shergottite)
    Shock stage:
    high
    Weathering grade:
    low
    Ferrosilite (mol%):
    20.3-23.3; 52.4-59.2
    Wollastonite (mol%):
    36.2-32.0; 14.2-19.7
    Classifier:
    A. Irving, UWS, and P. Carpenter, WUSL
    Type spec mass (g):
    20.1
    Type spec location:
    UWB
    Main mass:
    M. Lyon/M. Fleeman/R. Vargas
    Comments:
    Work name Lyon19-2; submitted by A. Irving