NWA 801, Carbonaceous CR2 Meteorite, Micromount

$5.00

Description

In 2001, NWA 801 was recovered from a Saharan strewnfield in Morocco. At first appearances, it was a relatively unremarkable, chondrule-rich meteorite covered in desert varnish. It was classified at the American Museum of Natural History has a carbonaceous chondrite of the CR2 type (a rare type at the time in 2001).

Refer to the photo. The black centimeter cube is shown for scale and is not included. You are purchasing a small fragment like the one shown. Your purchase will include a labeled gemjar for safe storage.

From the Meteoritical Bulletin entry on NWA 801 :

Northwest Africa 801

Morocco

Find: 2001

Carbonaceous chondrite (CR2)

History: M. Farmer and G. Hupe recovered a total of approximately 5 kg of many individuals and fragments from Zagora, Morocco. Many whole and sliced specimens have been sold over the last several years.

Physical characteristics: Many whole stones and fragments, all with desert varnish and brown/orange color. Numerous chondrules, many on the order of ~ 1 mm in apparent diameter, are visible.

Petrography: (G. Benedix and C. Smith, NHM) The thin section studied is dominated by millimeter-sized Type I PO and POP chondrules, which are often rimmed with and/or contain metallic Fe-Ni blebs. Metallic Fe-Ni also occurs as rounded, millimeter-sized grains within the matrix. Interstitial to chondrules and metal is a fine-grained matrix rich in phyllosilicate.Two Type II chondrules were also observed. Pervasive veins of rust occur throughout.

Classification:Carbonaceous chondrite (CR2); moderate to extensive weathering.

Type specimens: A total of 77.4 g of sample and two sections are on deposit at NHM. Farmer holds several grams, KCCU holds approximately 10 g, AMNH hold several grams