Ancient volcanic eruption produced tridymite, a rare mineral on Mars - News9 LIVE

Scientists were not clear how a mineral rare even on Earth ended up in the Gale crater

In 2016, the Curiosity rover detected a rare mineral, tridymite in the Gale Crater on Mars. Tridymite is a high-temperature, low-pressure form of quartz that is extremely rare on Earth. It was not cl… [+2659 chars]

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