NWA 13012 (17,065 g)

Northwest Africa 13012 (NWA 13012)
(Northwest Africa)
Purchased: 2019
Classification: Ordinary chondrite (LL3-6)
History: The meteorite was purchased from a meteorite dealer in Erfoud, Morocco.
Physical characteristics: Grayish rock without fusion crust.
Petrography: The meteorite is a chondritic breccia consisting of angular to subrounded LL6 clasts set into LL3 type matrix showing a chondritic texture with well defined chondrules. Chondrules are mostly flattened and well packed and have a mean diameter of about 0.9 mm. Plagioclase grain size in LL6 clasts is about 60 µm.
Geochemistry: type 3 lithology: olivine: Fa16.4±9.6 (Fa2.7-30.1, n= 17); pyroxene: Fs12.5±7.8Wo1.2±0.8 (Fs2.3-23.8Wo0.3-2.4, n= 22); type 6 lithology: olivine: Fa30.6±0.4, n=10; pyroxene: Fs25.1±0.2Wo1.5±0.1, n=9
 
Place of purchase:
Erfoud, Morocco
Date:
P 2019
Mass (g):
227
Pieces:
1
Class:
LL3-6
Shock stage:
S1
Weathering grade:
W1
Fayalite (mol%):
16.4; 30.6
Ferrosilite (mol%):
12.5; 25.1
Wollastonite (mol%):
1.2; 1.5
Classifier:
A. Greshake, MNB
Type spec mass (g):
26.1
Type spec location:
MNB
Main mass:
Hanno Strufe
Comments:
Submitted by Ansgar Greshake