![]() |
||
|
Northwest Africa 12319 | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 12319 This is an OFFICIAL meteorite name. Abbreviation: NWA 12319 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 138 approved meteorites classified as Achondrite-ung. [show all] Search for other: Achondrites, Ungrouped achondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 21 Sep 2019 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 108:
Northwest Africa 12319 (NWA 12319) (Northwest Africa) Find: 2018 Classification: Ungrouped achondrite History: The meteorite was discovered in 2018 ans sold by a meteorite dealer in Agadir Physical characteristics: Thirteen green-gray fragnents and small splinters of totaling 35.3 g, some ae partly covered by olive-green-brown fusion crust. Petrography: (R. Bartoschewitz, Bart) brecciated dunite with pyroxene (<0.2 mm), plagioclase (<0,1 mm), chromite (<1.5 mm), and troilite. Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa12.9±2.8, (n=48), Fe/Mn=37; pyroxene Fs22.0±5.0Wo2.8±1.4 (n=4, Fe/Mn=27); augite En46Fs10Wo44 (n=2); feldspar An71Or<1 (n=4); chromite CRAL88, FFM69 (n=3); troilite. Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 3.01. O-isotopes (A. Pack, UGött): δ17O = 1.681‰, δ18O = 3.613‰, Δ17O(‰) = -0.198. Classification: Achondrite, ungrouped. Fe/Mn and O-isotopes show relation to QUE 93148, NWA 12217, and NWA 12562. NWA 12319 is probably paired with NWA 12217 and NWA 12562 Specimens: 1.05 g at Münster and 5.07 at Kiel on deposit, main mass with Alan Mazur and 5 g with Bart. | ||||||||||||||||||||||||||||||
Data from: MB108 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||
Plots: | O isotopes: | ||||||||||||||||||||||||||||||
Institutions and collections |
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012) Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013) Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019) |
||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
| ||||||||||||||||||||||||||||||
Geography: |
Statistics: This is 1 of 9370 approved meteorites from (Northwest Africa) (plus 1875 unapproved names) |