![]() |
||
|
Northwest Africa 8194 | |||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 8194 This is an OFFICIAL meteorite name. Abbreviation: NWA 8194 Observed fall: No Year found: 2010 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 391 approved meteorites classified as Eucrite-pmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 28 Feb 2015 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 104:
Northwest Africa 8194 (NWA 8194) (Northwest Africa) Purchased: 10/2010 Classification: HED achondrite (Eucrite, polymict) Petrography: The rock displays a light grayish interior and is composed of up to several mm-sized basaltic, melt, and mineral clasts set into a fine-grained clastic matrix. Mineral clasts and dominant matrix minerals are calcic plagioclase and pyroxenes with exsolution lamellae. Accessory phases include chromite, SiO2 polymorphs, and troilite. Diogenitic component is about 5%. Geochemistry: Low-Ca pyroxene: Fs47.3±9Wo5.5±2.1 (Fs32.7-57.5Wo2.6-8.7, n=21, FeO/MnO=26-32); Ca-pyroxene: Fs21.4±0.2Wo43.5±0.3 (Fs21.1-21.7Wo42.9-43.8, n=10, FeO/MnO=27-30); calcic plagioclase: An91.5±2.3 (An88.4-93.9, n=14) | ||||||||||||||||||||||||||||
Data from: MB104 Table 0 Line 0: |
|
||||||||||||||||||||||||||||
Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) JNMC: jnmczurich, P.O. Box 208, CH-8155 Niederhasli, Switzerland; Website (private address; updated 4 Feb 2014) |
||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
| ||||||||||||||||||||||||||||
Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |