-40%

AV25 - Top Beautiful Mesosiderite Meteorite Thin Slice "NWA 13102" 8.84g

$ 69.95

Availability: 100 in stock
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    Description

    DESCRIPTION
    AV25 -  Top Beautiful Mesosiderite Meteorite Thin Slice "NWA 13102" 8.84g
    TYPE & OFFICIAL NAME:
    "NWA 13102" - Mesosiderite
    FALL/FIND LOCATION:
    Northwest Africa
    WEIGHT:
    8.84 g Slice. Polished on one side. Iron nodules etched
    REF.:
    AV25
    Observations:
    LAST ONE AVAILABLE
    The authenticity of this specimen is guaranteed
    by the Geologist J.A.Poblador, member of International Meteorite Collectors Association IMCA 5681 and Global Meteorite Association G0043 and main mass holder of this meteorite.
    Northwest Africa 13102
    Basic information
    Name:
    Northwest Africa 13102
    This is an OFFICIAL meteorite name.
    Abbreviation:
    NWA 13102
    Observed fall:
    No
    Year found:
    2019
    Country:
    (Northwest Africa)
    Mass:
    139.3 g
    Classification
    history:
    Recommended:
    Mesosiderite
    [explanation]
    This is 1 of 210 approved meteorites classified as Mesosiderite.
    [show all]
    Search for other:
    Mesosiderites
    ,
    Metal-rich meteorites
    Comments:
    Approved 9 Feb 2020
    Writeup
    Writeup from MB 109:
    Northwest Africa 13102
    (NWA 13102)
    (Northwest Africa)
    Purchased: 2019 Aug
    Classification: Mesosiderite
    History
    : Purchased from a dealer in Zagora, Morocco in August 2019 by Juan Avilés Poblador on behalf of
    UAlic
    .
    Petrography
    : (A. Irving,
    UWS
    and P. Carpenter,
    WUSL
    ) Recrystallized breccia composed of a variety of mineral clasts, some of which are rimmed by apparent reaction assemblages. Predominant component minerals are orthopyroxene (of several distinct compositions, with rare augite inclusions), olivine (of several distinct compositions) and anorthite, together with accessory kamacite (with taenite rims), silica (as acicular grains associated with anorthite), merrillite, chromite and troilite. Some orthopyroxene grains are rimmed by more ferroan orthopyroxene and some olivine grains are rimmed by orthopyroxene.
    Geochemistry
    : Orthopyroxene cores (Fs
    17.6
    Wo
    0.9
    ; Fs
    25.2
    Wo
    2.4
    ; Fs
    33.7
    Wo
    2.3
    ; FeO/MnO = 27-29, N = 3), orthopyroxene rims (Fs
    31.8-37.5
    Wo
    2.6-3.5
    , FeO/MnO = 25-26, N = 3), pigeonite rim on large orthopyroxene grain (Fs
    33.4
    Wo
    9.4
    , FeO/MnO = 26), olivine (Fa
    16.6-16.8
    ; Fa
    34.4
    ; FeO/MnO = 40-45, N = 3), orthopyroxene rim on magnesian olivine (Fs
    21.9
    Wo
    1.9
    , FeO/MnO = 25), augite inclusion in orthopyroxene (Fs
    16.9
    Wo
    42.0
    , FeO/MnO = 21), anorthite (An
    90.4-95.8
    Or
    0.3-0.1
    , N = 3).
    Classification
    : Mesosiderite.
    Specimens
    : 21.2 g including one polished endcut at
    UWB
    ; remainder in the collection
    UAlic
    .
    Data from:
    MB109
    Table 0
    Line 0:
    Place of purchase:
    Zagora
    Date:
    P 2019 Aug
    Mass (g):
    139.3
    Pieces:
    1
    Class:
    Mesosiderite
    Shock stage:
    low
    Weathering grade:
    low
    Fayalite (mol%):
    16.6-16.8; 34.4
    Ferrosilite (mol%):
    17.6-37.5
    Wollastonite (mol%):
    0.9-3.5
    Classifier:
    A. Irving, UWS, and P. Carpenter, WUSL
    Type spec mass (g):
    20.1
    Type spec location:
    UWB
    Main mass:
    UAlic
    Comments:
    Work name JAP19-2; submitted by A. Irving
    Institutions
    and collections
    UWS
    : University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
    WUSL
    : Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
    UWB
    : University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
    UAlic
    : Earth Sciences Department University of Alicante San Vicente del Raspeig, Spain (institutional address; updated 9 Feb 2020)
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