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18.74g OUZINA R4 Chondrite Meteorite Slice

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  • $ 1,500.00


On Offer: 18.74g R4 chondrite meteorite slice - R4 breccia I Ouzina

Description: 18.74 gram R4 Chondrite slice of the R type chondrite Ouzina meteorite.
Official Name: Ouzina
Classification: Rumuruti Type (R) - R4 breccia
General Information: The R chondrite, as it is most commonly referred to, is one of the 5 known classes of chondritic meteorites: Ordinary, Carbonaceous, Enstatite (E), Rumuruti (R), and Kakangari (K). The R chondrite is the most oxidized of all the chondrites, and is the rarest of the chondrite classes with the exception for the K chondrite.  This the R4 breccia displays three distinct lithologies: black, light grey, and brown. Depending on the specimen, it may have one, two or all three visible in a single stone. 
What You Get: 18.74 gram R chondrite Ouzina specimen as shown, storage/display membrane box, signed certificate of authenticity.
I offer a 100% no questions asked 30 day return policy

Basic information Name: Ouzina
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1999
Country: Morocco
Mass: 642 g
NHM Catalogue:   5th Edition   (2000)   R4
Meteoritical Bulletin:   MB 84   (2000)   R4
MetBase:   v. 7.1   (2006)   R4
Recommended:   R4    [explanation]

This is 1 of 66 approved meteorites classified as R4.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 4-7)

Writeup from MB 84:


Morocco , near Algerian border

Found 1999 April

Rumuruti-type chondrite (R4)

A 642 g stone was found by a Bedouin.  Classification and mineralogy (M. Killgore, SWML; A. Rubin, UCLA):  chondrules (0.4 to 1 mm) well-defined, but matrix and chondrule mesostasis recrystallized; barred olivine and porphyritic chondrules abundant; average olivine, Fa40.1, with 0.18 wt% NiO; shock stage, S2; weathering grade, W4.  Specimens:  main mass, with a dealer who wishes to remain anonymous; Fectay; 120 g, SWML; type specimen, 27 g, FMNH.

   and collections
FMNH: Department of Geology The Field Museum of Natural History 1400 South Lake Shore Drive Chicago, IL 60605-2496, USA, United States; Website (institutional address; updated 16 Nov 2011)
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)