Meteorite Northwest Africa 7831
NWA 7831 is the abbreviation of the meteorite.
The meteorite is delivered in a closed case.
When purchasing such a meteorite, our manager will contact you and you can choose a sample for yourself.
The authenticity of the meteorite is confirmed by a certificate from the Ukrainian company SPACEMAN, which is a member of the organization https://imca.cc under registration number 4167. IMCA is the most respected organization in the world of meteorites. SPACEMAN is also a member of The meteoritical society and the Global Meteorite Association and is the only representative of these organizations in Ukraine.
Diogenites are a group of stony meteorites of the achondrite type. Together with howardites and eucrites, they are united in the HED-meteorite clan. HED meteorites are thought to have originated from the asteroid 4 Vesta, with diogenites forming at greater depths than howardites and eucrites and therefore being modified by higher temperatures. Vesta is the largest and brightest asteroid in the asteroid belt and the second largest body (after the dwarf planet Ceres), with an average diameter of about 525 km (326 mi). Several billion years ago, two powerful collisions ejected some of Vesta's mass, and some of this material fell here on Earth as HED meteorites (howardite, eucrite, and diogenite). Amazingly, when you look at photographs of Vesta or Eve through a powerful telescope, you can easily see the craters from which the HED meteorites came.
Mineral composition and geochemistry: Orthopyroxene (Fs28.1-28.3Wo3.0-3.3; FeO/MnO = 29-31), clinopyroxene (Fs10.9Wo43.1, FeO/MnO = 26). Oxygen isotopes (K. Ziegler, UNM): analyses of acid-washed orthopyroxene by laser fluorination gave, respectively, δ17O = 1.677, 1.793, 1.810; δ18O = 3.680, 3.879, 3.875; Δ17O = -0.266, -0.255, -0.236 per mil.
You can order such a meteorite for fans of space and NASA on our website or buy it in the store at 50b Khreshchatyk, Kyiv. We provide fast delivery to anywhere in the world and guarantee the quality of each product.
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