单词	olivine
释义	olivine noun ol·​iv·​ine ˈä-lə-ˌvēn  : a usually greenish mineral that is a complex silicate of magnesium and iron used especially in refractories compare peridot olivinic ˌä-lə-ˈvi-nik  adjective or olivinitic ˌä-lə-və-ˈni-tik  Example Sentences Recent Examples on the Web While how those rocks got there has been a debate for two decades, the new study says that olivine is commonly made within magma that originates from the mantle of Mars, just like on Earth. Elizabeth Howell, Forbes, 3 May 2022 Seitah is rich in olivine that settled out of thick magma, perhaps a lava lake. New York Times, 27 Apr. 2022 The thinking now is that the Jezero crater floor is the same olivine-rich volcanic rock that orbiting spacecraft have observed in the region. New York Times, 15 Feb. 2022 As waves and currents dissolve the olivine, it is expected to create a series of chemical reactions that allow the ocean to capture CO2 from the air. Eric Niiler, WSJ, 6 Mar. 2022 Later fractures emerged between the olivine grains that were filled with carbonates, a mineral that forms through interactions with water. New York Times, 15 Feb. 2022 Those observations revealed large grains of olivine, an igneous mineral that can accumulate at the bottom of a large lava flow. New York Times, 15 Feb. 2022 The analysis revealed large olivine crystals surrounded by pyroxene crystals, both of which pointed to the fact that the rock came from volcanic lava flows. Ashley Strickland, CNN, 15 Dec. 2021 Traditional materials like abalone and olivine shells, feathers and other materials are growing scarcer. Debra Utacia Krol, The Arizona Republic, 21 Aug. 2021 See More Word History Etymology German Olivin, from Latin oliva First Known Use 1794, in the meaning defined above
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