Opal evaluation should be done under controlled lighting on a dark background. Rotating the opal against a background helps when you’re determining its type and evaluating its play-of-color and cut.

WHITE PLAINS, N.Y., November 06, 2024--(BUSINESS WIRE)--OPAL Fuels Inc. (Nasdaq: OPAL) announced today that construction has commenced on a new landfill-gas-to-RNG facility at the Kirby Canyon ...

"Black opal is the most amazing gemstone on the planet ... and the ever-present prospect of finding a valuable seam of colour fuels each day. It has seen him cross paths with miners, collectors ...

After hours: November 27 at 6:33 p.m. EST ...

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Opal’s Oysters has opened on South Eighth Street downtown, next door to Terry Black’s Barbecue. Terry Black himself said the seafood restaurant would follow his namesake into the Waco market ...

Netflix makes it a bit easier to find Black cinema thanks to its Black Stories collection. It’s a loaded category with a plethora of critically acclaimed films. We curate this list every month ...

After hours: 29 November at 14:37 GMT-5 ...

Green and black tea have similar health benefits, such as boosting alertness and protecting heart and brain health. Both are high in antioxidants but differ in their components. One isn’t necess ...