metasomatically altered

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Iron ore — Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, deep purple, to rusty red. The iron itself is usually found in the … Wikipedia
Jadeitite — is a rare metamorphic rock found in blueschist grade metamorphic terrains. It is found in isolated metasomatically altered bodies within serpentinite associated with subduction zone environments. Jadeitite consists almost entirely of jadeite… … Wikipedia
Partheite — Infobox mineral name = Partheite category = Silicate mineral boxwidth = boxbgcolor = imagesize = caption = formula =Ca2Al4Si4O15(OH)2·4(H2O) molweight = color = White, colourless habit = Fibrous, radial system = monoclinic prismatic twinning =… … Wikipedia
Rubidium-strontium dating — The rubidium strontium dating method is a radiometric dating technique that geologists use to determine the age of rocks.Development of this process was aided by Fritz Strassmann, who later moved onto discovering nuclear fission with Otto Hahn… … Wikipedia

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