NWA 15581 CK5 Carbonaceous chondrite meteorite - 44 g - (1)
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Selected by Francesco Moser
Over 20 years collecting meteorites; former museum curator and experienced restorer.
Estimate € 380 - € 450
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Northwest Africa 15581 CK5 carbonaceous chondrite meteorite from Mali, end-cut, 44 g.
AI-assisted summary
Description from the seller
Northwest Africa 15581
(NWA 15581)
CK5 Carbonaceous chondrite meteorite
Found in April 2022 in Mali
44 grams End-Cut
Guarantee authenticity,
You are buying 100% a guaranteed authentic meteorite combined with a signed certificate of authenticity.
Shipping:
First class express delivery and tracing will be provided.
Free shipping worldwide via express delivery service, tracked and traced.
OFFICIAL CLASSIFICATION DATA SOURCE:
Northwest Africa 15581
Name: Northwest Africa 155817
This is an OFFICIAL meteorite name.
Abbreviation: NWA 15581
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass: 1577 g
Classification Recommended: CK5
Comments: Approved 11 Apr 2024
Writeup
Writeup from MB 113:
Northwest Africa 15581 (NWA 15581)
Classification: Carbonaceous chondrite (CK5)
Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Sparse well-defined, mostly porphyritic chondrules containing Cr-magnetite stained by Fe terrestrial hydroxides are set in a fine grained matrix containing stained Cr-magnetite, subcalcic augite, intermediate plagioclase and composite grains of ilmenite+Cr spinel. Minor secondary calcite, barite and Fe oxide are present.
Geochemistry: Olivine (Fa30.5±0.3, range Fa30.0-30.8, N = 5), low-Ca pyroxene (Fs27.6±1.3Wo0.9±0.4, range Fs26.6-29.2Wo0.4-1.3, Al2O3 3.1-5.3 wt.%, N = 4), pigeonite (Fs23.8Wo9.6, Al2O3 3.0 wt.%), subcalcic augite (Fs14.7Wo30.9, Al2O3 2.2 wt.%), plagioclase (An30.3Or2.5; An50.2Or1.0; N = 2), magnetite (Cr2O3 3.7-3.9 wt.%, N = 3).
Classification: Carbonaceous chondrite (CK5).
Data from:
MB113
Table 0
Line 0:
Place of purchase: Mali
Date: P 2022 Apr
Mass (g): 1577
Pieces: 15
Class: CK5
Shock stage: low
Weathering grade: low
Fayalite (mol%): 30.6±0.3
Ferrosilite (mol%): 27.6±1.3
Wollastonite (mol%): 0.9±0.4
Classifier: A. Irving, UWS, and P. Carpenter, WUSL
Northwest Africa 15581
(NWA 15581)
CK5 Carbonaceous chondrite meteorite
Found in April 2022 in Mali
44 grams End-Cut
Guarantee authenticity,
You are buying 100% a guaranteed authentic meteorite combined with a signed certificate of authenticity.
Shipping:
First class express delivery and tracing will be provided.
Free shipping worldwide via express delivery service, tracked and traced.
OFFICIAL CLASSIFICATION DATA SOURCE:
Northwest Africa 15581
Name: Northwest Africa 155817
This is an OFFICIAL meteorite name.
Abbreviation: NWA 15581
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass: 1577 g
Classification Recommended: CK5
Comments: Approved 11 Apr 2024
Writeup
Writeup from MB 113:
Northwest Africa 15581 (NWA 15581)
Classification: Carbonaceous chondrite (CK5)
Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Sparse well-defined, mostly porphyritic chondrules containing Cr-magnetite stained by Fe terrestrial hydroxides are set in a fine grained matrix containing stained Cr-magnetite, subcalcic augite, intermediate plagioclase and composite grains of ilmenite+Cr spinel. Minor secondary calcite, barite and Fe oxide are present.
Geochemistry: Olivine (Fa30.5±0.3, range Fa30.0-30.8, N = 5), low-Ca pyroxene (Fs27.6±1.3Wo0.9±0.4, range Fs26.6-29.2Wo0.4-1.3, Al2O3 3.1-5.3 wt.%, N = 4), pigeonite (Fs23.8Wo9.6, Al2O3 3.0 wt.%), subcalcic augite (Fs14.7Wo30.9, Al2O3 2.2 wt.%), plagioclase (An30.3Or2.5; An50.2Or1.0; N = 2), magnetite (Cr2O3 3.7-3.9 wt.%, N = 3).
Classification: Carbonaceous chondrite (CK5).
Data from:
MB113
Table 0
Line 0:
Place of purchase: Mali
Date: P 2022 Apr
Mass (g): 1577
Pieces: 15
Class: CK5
Shock stage: low
Weathering grade: low
Fayalite (mol%): 30.6±0.3
Ferrosilite (mol%): 27.6±1.3
Wollastonite (mol%): 0.9±0.4
Classifier: A. Irving, UWS, and P. Carpenter, WUSL
Details
Number of items
1
Type of meteorite
NWA 15581 CK5 Carbonaceous chondrite meteorite
Weight
44 g
Country of Origin
Mali
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