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A gem found in a Mars meteorite has scientists puzzled
Yahoo • • science
Key Points:
- Scientists have discovered andradite, a type of garnet, in the Martian meteorite NWA 8171 for the first time, suggesting previously unknown geological processes on Mars involving intense heat, pressure, or chemical alteration.
- The meteorite, classified as breccia, contains fragments cemented together, leading researchers to investigate whether the garnet is native to Mars or introduced by an ancient asteroid impact.
- The garnet grains were initially mistaken for pyroxene but confirmed through chemical analysis, making NWA 8171 unique among Martian meteorites for containing garnet.
- This finding offers new insights into Mars' geological history and may represent a previously unrecognized category of Martian rock, aiding studies of the planet's evolution over 4.5 billion years.
- Martian meteorites like NWA 8171 are rare and valuable for research, providing direct access to Martian materials that complement data from rovers and orbiters.
