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Northwest Africa 15599
Basic information Name: Northwest Africa 15599
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15599
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 106 g
Classification
  history:
Recommended:  CK5    [explanation]

This is 1 of 209 approved meteorites classified as CK5.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 7 Jan 2023
Writeuphelp
Writeup from MB 112:

Northwest Africa 15599 (NWA 15599)

(Northwest Africa)

Purchased: October, 2022

Classification: Carbonaceous chondrite (CK5)

History: The meteorite was purchased from a group of meteorite hunters in Nouadhibou, Mauritania, in October, 2022.

Physical characteristics: Five dark brownish fragments partly covered with fusion crust.

Petrography: The meteorite displays a dark brownish to orange interior and consists of sparse, well separated chondrules (apparent mean diameter about 750 µm) set in abundant recrystallized matrix dominated by ferroan Ni-bearing olivine. Minor phases are low-Ca pyroxene, Ca-pyroxene, nests of intermediate plagioclase, Cl-apatite, and FeS. Cr-rich magnetite is abundant; no metal detected.

Geochemistry: olivine: Fa26.2±0.2 (Fa25.7-26.6, FeO/MnO=90±9; NiO=0.54±0.03 wt%, n=12); low-Ca pyroxene: Fs24.2±0.3Wo0.5±0.1 (Fs23.8-24.7Wo0.4-0.5, n=7); diopside: Fs8.3±0.1Wo48.2±0.4 (Fs8.2-8.5Wo47.8-48.8, n=7); feldspar: An19.0-35.4Ab62.5-75.9Or2.1-8.9, n=7; magnetite contains 3.50±0.03 wt% Cr2O3, n=4

Data from:
  MB112
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P October, 2022
Mass (g):106
Pieces:5
Class:CK5
Shock stage:S2
Weathering grade:high
Fayalite (mol%):26.2
Ferrosilite (mol%):24.2; 8.3
Wollastonite (mol%):0.5; 48.2
Classifier:A. Greshake, MNB
Type spec mass (g):23
Type spec location:MNB
Main mass:Salamu Ali
Comments:Submitted by Ansgar Greshake
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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