NWA 10507, Carbonaceous Chondrite CO3, Micromount

$5.00

Description

NWA 10507 was recovered out of the Saharan Desert of Morocco in 2015. It was classified as a CO3 carbonaceous chondrite. It has numerous small chondrules and irregular CAI's packed into a fine-grained, dark matrix.

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 10507 :

Northwest Africa 10507 
Purchased: 2015 Oct
Classification: Carbonaceous chondrite (CO3.0)
History: Purchased by Aras Jonikas in October 2015 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Small, well-formed chondrules (apparent diameter 0.55±0.3 mm), mineral fragments and sparse, irregularly shaped CAI are set in a deep brown matrix (~50 vol.%).

Classification: Carbonaceous chondrite (CO3.0). The mean and range of Cr2O3 contents of ferroan olivine occurring as rims and as matrix grains is essentially the same as for Colony, which was designated as a CO3.0 by Grossman and Brearley (2005).