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Some attribute the difference to the dirt and climate, thanks to pink granite soils laced with silica, quartz, and iron oxide, and steady winds that limit disease pressure.—Lauren Mowery, Forbes, 25 Mar. 2025 This is because in the ore found in nature, iron is bound to oxygen, creating iron oxide, more commonly known as rust.—Michael Franco, New Atlas, 13 Mar. 2025 But iron oxides come in many flavors, and the exact chemistry of Martian rust has been intensely debated, the study reports.—Doyle Rice, USA TODAY, 26 Feb. 2025 Previous analyses of iron oxide on Mars, based only on observations by spacecraft, didn’t detect any evidence of water, which led researchers to believe that the iron oxide must be hematite.—Ashley Strickland, CNN, 25 Feb. 2025 See All Example Sentences for iron oxide
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