Dhofar 2093 (eucrite) – 156g endcut

900.00 

A really nice eucrite with some fresh crust discovered by an anonymous finder on a desert trip 12 km SE of Dauka in 2014.

1 in stock

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Description

156 g endcut.

Sold with label/signed certificate of authenticity.


Dhofar 2093 (Dho 2093)        18°34.398’N, 54°8.889’E

Zufar, Oman

Find: 2014

Classification: HED achondrite (Eucrite)

History: Discovered by an anonymous finder on a desert trip 12 km SE of Dauka in 2014.

Physical characteristics: Four gray fragments, partly covered by black-browinish crust ranging from 301.3 to 30.5 g. Cut face shows light-gray matrix with white, black, and light-brown inclusions.

Petrography: (R. Bartoschewitz, Bart) Microscopic examination of a thin section shows holocrystalline hypidiomorphic texture and weak shock effect: undulatory extinction in plagioclase. Magnetic susceptibility log χ (× 10-9 m3/kg) = 2.88.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Pyroxene (pigeonite) Fs56.8±3.3Wo7.2±4.4, Fe/Mn 29.5 (n=13); Plagioclase An89.4±4.9Ab10.2±4.5 (n=20); SiO2; chromite CRAL 80, FFM 98 (n=1); ilmenite; kamacite Ni <0.1, Co 0.5 wt.% (n=2).

Classification: Achondrite (basaltic eucrite, monomict breccia)

Specimens: 20.0 g on deposit at Kiel, main mass anonymous

 

State/Prov/County: Zufar
Date: 2014
Latitude: 18°34.398’N
Longitude: 54°8.889’E
Mass (g): 764
Pieces: 4
Class: Eucrite
Weathering grade: low
Ferrosilite (mol%): 56.8±3.3 (n=13)
Wollastonite (mol%): 7.2±4.4
Magnetic suscept.: 2.88
Classifier: R. Bartoschewitz
Type spec mass (g): 20.0
Type spec location: Kiel
Main mass: Anonymous
Finder: Anonymous
Comments: Submitted by R. Bartoschewitz