University of Tehran Press Journal of the Earth and Space Physics 2538-371X 41 4 2015 12 22 Lut 009, an H4 (S2, W4) ordinary chondrite meteorite from Lut Desert of Iran Lut 009, an H4 (S2, W4) ordinary chondrite meteorite from Lut Desert of Iran 125 130 55100 10.22059/jesphys.2015.55100 FA Hamed Pourkhorsandi Ph.D. Student, Aix-Marseille Université/CNRS/IRD, CEREGE UM34, Aix-en-Provence, France Hassan Mirnejad Associate Professor, Department of Geology, Faculty of Sciences, University of Tehran, Iran Pierre Rochette Professor, Aix-Marseille Université/CNRS/IRD, CEREGE UM34, Aix-en-Provence, France Jamshid Hassanzadeh Associate Researcher, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, USA Journal Article 2015 04 20 Lut 009 meteorite was found during a trip to Lut Desert of Iran in March,2012, at 30°20.38' N, 59°09.04' E. Chemical compositions of equilibrated olivine (Fa19.3 ± 0.5) and orthopyroxene (Fs16.7 ± 0.6) show that the meteorite sample belongs to H group of ordinary chondrites, while the texture (chondrule petrography and plagioclase size) suggests a petrologic type of 4. The Lut 009 has been very weakly shock altered and has a shock stage of S2. Fe-Ni is completely weathered whereas less than 5 percent of troilite is still present. Therefore, the meteorite has a weathering grade of W4. Magnetic susceptibility is log χ =4.75 (χ in 10-9 m3/kg) and, thus, consistent with a W4 H ordinary chondrite. Here we report description of Lut 009 in the first extended study on a meteorite from Lut Desert. Along with this sample, in-progress investigations of other meteorites from the desert will open a window into the characteristics of meteorite concentrations in this region. Lut 009 meteorite was found during a trip to Lut Desert of Iran in March,2012, at 30°20.38' N, 59°09.04' E. Chemical compositions of equilibrated olivine (Fa19.3 ± 0.5) and orthopyroxene (Fs16.7 ± 0.6) show that the meteorite sample belongs to H group of ordinary chondrites, while the texture (chondrule petrography and plagioclase size) suggests a petrologic type of 4. The Lut 009 has been very weakly shock altered and has a shock stage of S2. Fe-Ni is completely weathered whereas less than 5 percent of troilite is still present. Therefore, the meteorite has a weathering grade of W4. Magnetic susceptibility is log χ =4.75 (χ in 10-9 m3/kg) and, thus, consistent with a W4 H ordinary chondrite. Here we report description of Lut 009 in the first extended study on a meteorite from Lut Desert. Along with this sample, in-progress investigations of other meteorites from the desert will open a window into the characteristics of meteorite concentrations in this region. https://jesphys.ut.ac.ir/article_55100_eed94b6ff391dd15556faa482a27a836.pdf