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The most colorful gemstones on Earth - Comment

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Username : peter88
Category : Seminar Talk
Views : 499
Post date : 2021-01-15 23:39
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In November 1986, Australian miners climbed Lunatic Hill and bored 20 meters into the Earth. They were rewarded with a fist-sized, record breaking gemstone, which they named the Hailey's Comet opal. Thanks to a characteristic called "play of color," no two opals look the same. So what causes these vibrant displays? Jeff Dekofsky digs into the rock's shimmering, dancing displays of light. [Directed by Ivana Bošnjak and Thomas Johnson, narrated by Jack Cutmore-Scott, music by Salil Bhayani].
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