They found giant crystals, it was a different acidity, and there were no gas bubbles in it. (npr.org)
Here, scientists try to move among giant crystals suspected to have formed more than 200,000 years ago. (sector2337.com)
BOSTON — Microbes found stowed inside giant crystals in caves in Chihuahua, Mexico, may have survived there for tens of thousands of years. (sciencenews.org)