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Asked by goer532syne4 to pratibhagautam, niamhtopping, joshuahollowood on 9 Oct 2025. This question was also asked by IslaM.
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Joshua Hollowood answered on 9 Oct 2025:
Yes, meteorites are usually different from ordinary rocks you find on Earth. Many meteorites are made from minerals that formed in the early solar system and contain things you almost never see in normal Earth rocks.
Other meteorites are made mostly of metal or rock that has melted and changed inside an asteroid, so they also look different from typical Earth rocks.
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Niamh Topping answered on 14 Oct 2025:
Yes and no! Rocks are made of minerals, so different meteorites are made of different minerals depending on where they came from. Whilst there are some minerals we see in meteorites that we don’t see in Earth rocks, you’d be surprised at how many of the same minerals there are! I work with meteorites from Mars and there’s a few sites on Earth which are a good analogue (so similar, but not the same!) as the types of rocks we see on Mars
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Pratibha Gautam answered on 26 Feb 2026:
Yes, that’s how we tell them apart from earth rocks. Meteorites/Space rocks have chemical isotopes and minerals formed at different time points of solar system’s history. Some of them are pretty similar to what we can see on earth as well while others are completely different. While Earth rocks are often made of things like sand, clay, and quartz, most meteorites are packed with heavy metals like iron and nickel. Because they had to fly through the atmosphere at super-high speeds, they have a “sunburn” called a fusion crust-a thin, black coating that looks like it was melted in an oven. This is a classic/easy to spot difference betwen space and earth rocks.
Many meteorites also have tiny, colourful glass beads inside them called chondrules that are older than the Earth itself. It’s like holding a piece of the solar system from before our planet was even born!
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