Dhofar 1442  					Location 19° 17.5’ N 54° 34.4’ E

Dhofar province, Oman 

Find 2005

Achondrite (Lunar KREEP impact melt breccia)



History and physical characteristics: This meteorite was found in the desert of Oman.
Five brownish to dark green stones weighing 106.5 g in total, with no fusion crust were located in two meters apart from each other. 

Petrography: (Ivanova M.A., Lorenz C.A., and Nazarov M.A., Vernad.) Meteorite is a impact melt breccia containing lithic clasts,
mineral fragments, glassy spherules, granulites and melt breccias embedded in a fine-grained melt matrix. The breccia is extremely polymict,
the matrix/clasts ratio is varying from sample to sample of the meteorite. The lithic clasts population is presented by anorthosites, gabbroes,
olivine gabbro-norites, gabbro-norites and norites. KREEPy and mare basalt clasts are present. The size range of the clasts is 0.02-8 mm;
the main minerals are pyroxene and feldspar; minor - olivine, silica, chromite, ilmenite, Ca-phosphate, troilite and FeNi metal.   

Geochemistry: (Ivanova M.A. and Kononkova N.N. (Vernad.) Chemical compositions of mineral phases are: feldspar An73-96Ab3.7-24.8; 
clinopyroxene En2.6-69.5Wo5.6-42.8 (Fe/Mn = 64 at.), orthopyroxene En60.8-77.1Wo1.2-4.1 (Fe/Mn = 69 at.), olivine Fo39.9-72.2 (Fe/Mn = 93 at.); 
ilmenite (MgO 5.5 wt%); FeNi metal (Ni 8.0 wt%; Co 0.6 wt%). Average glassy matrix composition (wt%): SiO2 49.6; TiO2 1.76; Al2O3 17.4; Cr2O3 0.20; 
FeO 10.7; MnO 0.15; MgO 7.16; CaO 11.1; Na2O 0.88; K2O 0.76; P2O5 0.84. 

Classification: Achondrite (lunar KREEP impact melt breccia with minor features of weathering. 

Specimens: A total of 21.8 g of sample and two thin sections are on deposit at Vernad.  
An anonymous buyer holds the main mass of the meteorite.