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Lunar NWA 13484 - Brecciated igneous rock with fractured mineral clasts
Lunar NWA 13484 - Brecciated igneous rock with fractured mineral clasts

Lunar NWA 13484 - Brecciated igneous rock with fractured mineral clasts

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    Description

    NWA 13484
    NWA 13484
    Found Sahara, 2020
    Achondrite
    Lunar Feldspathic Breccia
    Specimen is a 1.33g endcut
    COMBINED SHIPPING : 5$ per package
    Brecciated igneous rock with fractured mineral clasts to 300 μm set in a glassy mesostasis of feldspathic composition...
    From the Meteoritical society Database :
    Northwest Africa 13484
    Basic information
    Name:
    Northwest Africa 13484
    This is an OFFICIAL meteorite name.
    Abbreviation:
    NWA 13484
    Observed fall:
    No
    Year found:
    2017
    Country:
    (Northwest Africa)
    Mass:
    240 g
    Classification
    history:
    Recommended:
    Lunar (feldsp. breccia)
    Comments:
    Approved 14 Nov 2020
    Writeup
    Writeup from MB 109:
    Northwest Africa 13484
    (NWA 13484)
    (Northwest Africa)
    Find: 2017
    Classification: Lunar meteorite (feldspathic breccia)
    Physical characteristics
    : Greyish fragments.
    Petrography
    : (J. Gattacceca,
    CEREGE
    ) Brecciated igneous rock with fractured mineral clasts to 300 μm set in a glassy mesostasis of feldspathic composition. The mesostasis has abundant ~20 μm vesicles. FeNi metal is present as ~10 μm grains.
    Geochemistry
    : Olivine Fa
    32.9
    , FeO/MnO = 144 (n=1). Pyroxene : low-Ca pyroxene Fs
    23.7
    Wo
    5.5
    (n=2), Ca-pyroxene Fs
    22.1
    Wo
    33.8
    (n=1), FeO/MnO = 50.3±5.7 (n=3). Mesostasis An
    94.9
    Ab
    4.9
    Or
    0.2
    (n=3).
    Classification
    : Achondrite (lunar, feldspathic breccia)
    Specimens
    : Type specimen at
    CEREGE
    . Main mass with J. Bassemon.
    Data from:
    MB109
    Table 0
    Line 0:
    Date:
    2017
    Mass (g):
    240
    Pieces:
    many
    Class:
    Lunar (feldsp. breccia)
    Magnetic suscept.:
    3.38
    Classifier:
    J. Gattacceca, CEREGE
    Type spec mass (g):
    20
    Type spec location:
    CEREGE
    Main mass:
    J. Bassemon
    Comments:
    work name CM49; submitted by Jérôme Gattacceca
    Institutions
    and collections
    CEREGE
    : CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
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