Opal is the traditional birthstone for October.It is believed the stone was discovered in India and given the name "upala," or "precious stone" in Sanskrit, the Geological Institute of America ...

Opal is the traditional birthstone for October.It is believed the stone was originally found in India, where it was given the name "upalaupala ...

Opals are examples of natural photonic crystals. They are composed of small silica nanoparticles ranging in size from 50-300nm, and packed tightly together in a semi-regular "lattice" Breaking Taps ...

Gemstones News: Opals, associated with the zodiac sign Libra, are known for their emotional healing and creativity-boosting powers. Artists often use them to overcome ...

Now, researchers have dug into the Curiosity rover's vast archive of images and found that these opal-rich halos aren't isolated. Rather, they appear to exist all over Gale Crater, a 96-mile-wide ...

An opal stone was duly sent to Roald Dahl via his publisher, Penguin. Image source, Mark Taylor. Image caption, Roald Dahl thanked the class for the opal stone in a letter.

Opal is the traditional birthstone for October.It is believed the stone was originally found in India, where it was given the name "upala," or "precious stone" in Sanskrit, according to the ...

What is the birthstone for October? A full guide to the month's gemstones and symbolism. Olivia Munson. USA TODAY. People born in October can have one of two astrological signs: ...