It's 'raining' green crystals in Hawaii, thanks to Kilauea volcano eruption

In the never-ending parade of weird phenomena erupting from Hawaii's Kilauea volcano comes a "rain" of green crystals, which have supposedly been spotted on the ground after falling from the sky.

"It is literally raining gems," tweeted Tucson meteorologist Erin Jordan, who posted a photo sent to her by a friend in Hawaii.

The gems are also known as olivine, "a common mineral in basaltic lava, which is what this eruption is producing," said Concord University volcanologist Janine Krippner. "Olivine is formed in hot and deep magmas and is brought up to the surface during an eruption."

Although photos have been posted on social media, no scientists have confirmed any official sightings on the ground.

If verified, this olivine could have fallen out of the lava as it was spewed into the air, U.S. Geological Survey (USGS) scientist Wendy Stovall told Mashable.

It's certainly not unusual to find olivine crystals in most Hawaiian lava rock, both new and ancient. "It's pretty common," Stovall said to Mashable. "There’s often olivine in rocks all over Hawaii."

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