The Opal apple is a brilliant yellow fruit unlike any other. Its claim to fame is that is has a natural resistance to oxidation. In layman’s terms, this apple doesn’t brown when it’s exposed ...

December 14 marks two years since Opal launched the C1 after accruing a 16,000-person waitlist. In some respect, one couldn’t ask for a better time to launch a webcam than a global pandemic.

The 'Virgin Rainbow' is one of the world's rarest and most expensive opals. This extremely rare opal exhibits incredible fluorescence with a rainbow of different colors that make opal so ...

The world’s finest uncut opal, a 998-gram gem called the Fire of Australia, has gone on permanent public display for the first time since its discovery more than 60 years ago. Valued at more ...

They had stumbled into the city of Coober Pedy, a partly subterranean community and the opal capital of the world. The town’s name comes from the Aboriginal phrase “kupa piti,” or ...

CICERO, Ind. (Hamilton County Reporter) — Dean Caldwell of Cicero has been mining opal and obsidian for six months of the year in Mexico for the last 15 years. Last year, he pulled an opal out ...

An opal so fine it has been valued at over $1 million is about to go on public display for the first time. Michelle Starr is CNET's science editor, and she hopes to get you as enthralled with the ...