こちらは2020年に北アフリカで発見されたNWA 14416の隕石です。隕石の種類は普通コンドライトのL4です。詳細については以下の表のとおりです。スライスされた標本ですので4.7cm×0.15cm，重量は5.81gとなります。写真の1枚目と2枚目はスキャナで撮ったものです。
Northwest Africa 14416Basic informationName: Northwest Africa 14416
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14416
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass: 167 g
Classification
  history:Recommended:  L4    
This is 1 of 1919 approved meteorites (plus 4 unapproved names) classified as L4.  

Comments:Approved 31 Oct 2021WriteupWriteup from MB 110:
Northwest Africa 14416 (NWA 14416)(Northwest Africa)Purchased: 2020Classification: Ordinary chondrite (L4)History: Purchased by Geologist Juan Avils Poblador in Fall 2020 from a meteorite dealer in Mauritania.Physical characteristics: Single stone with dark-brown fusion crust.Petrography: (D. Sheikh, Cascadia) This sample is an ordinary chondrite containing chondrules (Av. 750±100 μm, n=14) and accessory Fe-Ni metal and troilite.Geochemistry: Olivine (Fa23.4±0.9, range Fa22.4-24.1, n=6), Low-Ca Pyroxene (Fs19.8±0.4Wo1.7±0.3, range Fs19.2-20.4Wo1.1-2.0, n=10).Classification: Ordinary chondrite (L4).Specimens: 20.1 g and a thin section at Cascadia; main mass with Juan Avils Poblador.Data from:
  MB110
  Table 0
  Line 0:Place of purchase:MauritaniaDate:P 2020Mass (g):167Pieces:1Class:L4Shock stage:S3Weathering grade:W2Fayalite (mol%):23.4±0.9Ferrosilite (mol%):19.8±0.4Wollastonite (mol%):1.7±0.3Classifier:D. Sheikh, CascadiaType spec mass (g):20.1Type spec location:CascadiaMain mass:Juan Avils PobladorComments:Submitted by Daniel SheikhInstitutions
   and collections Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; (institutional address; updated 28 Oct 2011)