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Meteorite NWA 15581 CK5 Carbonaceous chondrite meteorite, 125 grams

Description: NORTHWEST AFRICA 15581 (NWA 15581)CK5 CARBONACEOUS METEORITE FOUND IN APRIL 2022IN MALI 🇲🇱 125 GRAMS GUARANTEED AUTHENTICITY YOU ARE BUYING 100% A GUARANTEED AUTHENTIC METEORITE combined with a signed certificate of authenticityFirst express class delivery and provenance provided. I SHIP WORLDWIDE WITH FEDEX, DHL, UPS OR SIMILAR EXPRESS SERVICE, TRACKED & TRACED OFFICIAL CLASSIFICATION DATA SOURCE: THE METEORITICAL SOCIETY INTERNATIONAL SOCIETY FOR METEORITICS AND PLANETARY SCIENCE LUNAR AND PLANETARY INSTITUTE METEORITICAL BULLETIN DATABASE Northwest Africa 15581Basic informationName: Northwest Africa 15581 This is an OFFICIAL meteorite name. Abbreviation: NWA 15581 Observed fall: No Year found: 2022 Country: (Northwest Africa) Mass: 1577 g Classification history:Recommended: CK5 Comments:Approved 11 Apr 2024WriteupWriteup from MB 113: Northwest Africa 15581 (NWA 15581)(Northwest Africa)Purchased: 2022 AprClassification: Carbonaceous chondrite (CK5)History: Purchased by Mbark Arjdal in April 2022 from a Malian dealer.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).Specimens: 22.9 g plus one polished thin section at UWB; remainder with Mr. M. Arjdal.Data from: MB113 Table 0 Line 0:Place of purchase:MaliDate:P 2022 AprMass (g):1577Pieces:15Class:CK5Shock stage:lowWeathering grade:lowFayalite (mol%):30.6±0.3Ferrosilite (mol%):27.6±1.3Wollastonite (mol%):0.9±0.4Classifier:A. Irving, UWS, and P. Carpenter, WUSLType spec mass (g):22.9Type spec location:UWBMain mass:M. ArjdalComments:Work name Arj ZM 805; submitted by A. Irving CK5 means:"A carbonaceous chondrite of the CK group that is anomalous and petrologic type 5."The highlighted words are defined as follows:carbonaceous chondrite: A major class of chondrites that mostly have Mg/Si ratios near the solar value and oxygen isotope compositions that plot below the terrestrial fractionation line.CK group : The Karoonda (CK) chemical group of carbonaceous chondrites, distinguished by abundant fine-grained matrix (~75 vol%), mm-sized chondrules that lack igneous rims, relatively few refractory inclusions, and a high degree of oxidation; most CK chondrites have been metamorphosed to type 4 or higher.anomalous: Designates meteorites that have been determined to be a member of a specific group, but have certain properties that are unusual or distinctive.type 5: Designates chondrites that have been metamorphosed under conditions sufficient to homogenize olivine and pyroxene, convert all low-Ca pyroxene to orthopyroxene, cause the growth of various secondary minerals, and blur chondrule outlines.

Price: 995 USD

Location: Newtownabbey

End Time: 2025-01-12T17:29:07.000Z

Shipping Cost: 0 USD

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Meteorite NWA 15581 CK5 Carbonaceous chondrite meteorite, 125 gramsMeteorite NWA 15581 CK5 Carbonaceous chondrite meteorite, 125 gramsMeteorite NWA 15581 CK5 Carbonaceous chondrite meteorite, 125 gramsMeteorite NWA 15581 CK5 Carbonaceous chondrite meteorite, 125 gramsMeteorite NWA 15581 CK5 Carbonaceous chondrite meteorite, 125 gramsMeteorite NWA 15581 CK5 Carbonaceous chondrite meteorite, 125 grams

Item Specifics

Return shipping will be paid by: Buyer

All returns accepted: Returns Accepted

Item must be returned within: 30 Days

Refund will be given as: Money Back

Country/Region of Manufacture: Mali

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