 | | Journal (article/letter/editorial) | | concentrated, U is usually found in phosphates: merrillite and/or chlorapatite. As in stony meteorites,...variable from meteorite to meteorite and sometimes also exhibit variations in the same meteorite. Uranium...Uranium is found to be concentrated in merrillite (0.25 to 1.43 ppm) in all the mesosiderites except Bondoc...pallasites. In the seventh, Marjalahti, there are merrillite grains with concentrations ranging from 0.06...motivation of this work was to identify in a given meteorite as many U-rich phases as possible which could |  | | Journal (article/letter/editorial) | | microscopist, Gustav Tschermak, and the outstanding meteorite collection of that day, the Vienna collection...meteorites. Table 1 traces the development of meteorite mineralogy over the following seventy years. It...extracted sulfur with alcohol from the Cold Bokkeveld meteorite, and later investigators extracted it from other...Magnetite Chromite Quartz Tridymite Chlorapatite Merrillite (Whitlockite) Olivine Orthopyroxene Clinopyroxene...weathering. In 1955, therefore, to specializein meteorite mineralogy might well have beenconsideredthe refugeol |  | | Report (issue) | | Structural and compositional properties of iron meteorite groups ___________ The geochemical behavior of...ABBREVIATIONS The following abbreviations for the meteorite classes are used throughout the tables and elsewhere;...percent) ; all others (<0.01 percent). A list of meteorite minerals is provided, and a tabulation of elemental...minerals are quartz and aluminosilicates; the common meteorite minerals are anhydrous, whereas hydrated minerals...actual extraterrestrial abundances; irons dominate meteorite finds since they are resistant to weathering and |
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