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| Northwest Africa 13995 | |||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 13995 This is an OFFICIAL meteorite name. Abbreviation: NWA 13995 Observed fall: No Year found: 2021 Country: Algeria Mass:  12 kg | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 554 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||
| Comments: | Approved 18 Jun 2021 | ||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Northwest Africa 13995 (NWA 13995) Algeria Purchased: 2021 Feb Classification: HED achondrite (Eucrite) History: The holder (Xu Dengqin) purchased the sample from Aziz Zad, who found the meteorite in Algeria. The meteorite was purchased in February 2021 Petrography: The meteorite is a basaltic rock, composed of pigeonite(~30 vol.%, size from 20 to 2000 µm), augite(~15 vol.%, size from 20 to 2000 µm), and plagioclase (~50 vol.%, size from 20 to 2500 µm). with minor amounts of silica and troilite. It has ophitic to subophitic texture. Geochemistry: Low-Ca pyroxene: Fs61.2±0.3Wo1.8±0.1, Fe/Mn=36.0±0.6, n=6; high-Ca pyroxene: Fs46.2±4.4Wo21.9±5.1, Fe/Mn=33.9±0.9, n=4; (EPMA). | ||||||||||||||||||||||||
| Data from: MB110 Table 0 Line 0: |
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| Institutions and collections |
IGCAS: Institute of Geochemistry Chinese Academy of Sciences, Guiyang, China (institutional address; updated 27 Mar 2018) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography:
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Statistics: This is 1 of 1187 approved meteorites from Algeria (plus 28 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||||||