Classification: Ordinary chondrite (L6 S3/4 W0)
Place/Time: 02 February 1933 in Lithuana
Specimen was purchased as new polish meteorite “Siewierz” of unknown origin and send to classification. Here is the result of classification in Silesian University in Sosnowiec.
Petrography:(Lukasz Karwowski, USil) The meteorite contains a few completed and some small fragments of chondrules. The most of the mineral grains are xenomorphic in shape and are represented by: pyroxenes and olivines, which are associated with plagioclase. Ca-rich pyroxene is rare accessory phase. Locally, recrystallized maskelynite in olivine-, olivine-pyroxene- chondrules and pyroxene-bearing chondrules is noted. Opaque minerals are represented by: troilite, metallic phases with visible taenite, kamacite and plessite-like structure (small inclusions of kamacite in taenite). Graines of spinele-chromite was also found. The olivines are characterised by mosaic extinction of light. Mass of the meteorite is cut by numerous shock veins which are filled by metallic phase associated with troilite.
Geochemistry: Olivine mo: 0.00 – 0.141; Fo: 72.68 – 75.63; fa: 24.04 – 25.53; li: 0.00 – 0.12; te: 0.43 – 0.61.; low-Ca pyroxene En: 76.69 – 77.96; Fs: 20.81 – 21.66; Wo: 1.02 – 1.95: high-Ca pyroxene En: 46.18 – 46.36; Fs: 8.00 – 8.11; Wo: 45.31 – 46.36; feldspar Ab: 79.23 – 84.84; Or: 4.46 – 9.26; An: 10.52 – 12.11; kamacite: 4.44 – 5.90%at.Ni; 0.56 – 0.65%at.Co; taenite 26.44 – 37.76% at. Ni, 0.02 – 0.27%at.Co; troilite : Fe: 48.68 – 49.32; S: 50.64 – 51.17; Accesory: chromite, Cl- apatite, merrillite, rare metallic Cu in taenite, kamacite.
Classification:(Lukasz Karwowski, USil) Equilibrated ordinary chondrite (L6), W0, S3/4
After some months I found and confirm that this is Lithuana 1933 fall named Zemaitkiemis. There is long storry behind this meteorite. Specimen was recovered shortly after the fall by professor Mykolas Kaveckis from University of Vilnius and given to his brother Witold Kawecki who moved to Poland after the WWII. He keep specimen for 69 years before I was able to purchase it from the family.