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Researchers at Arizona State University working with NASA-affiliated scientists have found that the surface of Mars houses a supply of opal. The semi-precious gemstones form when silica dissolves in water—a process that …
Beginning with an excavation in 1984, an opal mine in Lightning Ridge (in rural New South Wales, Australia) suddenly became a hotbed for fossilized—and subsequently opalized—dinosaur bones. While the original team assumed …
Opal is said to bring inspiration, imagination and clarity of thought to the wearer. Australian jeweler Kim Victoria Wearne’s Opal 4 Peak Ring is individually engraved and asymmetrically hammer set, so no …