FELTON — An amateur miner hopes to sell what he believes is one of the largest common fire opals in America uncovered near his farm in Idaho. Jim Hartrim, a local gem jeweler, was tending his ...

Opal is known for its unique iridescence which makes it very popular amongst collectors and jewelers. This week, learn about common opal, precious opal and Nevada's state mineral, black fire opal!

Although white is the most common color worldwide ... The rocks are veined with flaky layers of raw opal, the same way it comes out of the mine. “This is the only place in America where you ...

New type of 'opal' formed by common seaweed Seaweed makes its own living opal nanotechnology Date: April 17, 2018 Source: University of Bristol Summary: Scientists have discovered a completely new ...

While it may be possible to find the precious gem in later mines, after playing several in-game months, we were never able to find the raw white opal in the second or third mines. The jewel maker ...