Opals! Photonic crystals! Structural color! Opals are examples of natural photonic crystals. They are composed of small ...

Opals, associated with the zodiac sign Libra, are known for their emotional healing and creativity-boosting powers. Artists ...

Tucked beneath the back of the stairs at the Ramada by Wyndham Tucson, 777 W. Cushing Street, Eritrean-born Huruy Zerzghi happily sells opals to anyone interested. But these are not just any opals; ...

When it comes to choosing the perfect gemstone for an engagement ring, many couples are exploring alternatives to traditional diamonds. Enter moissanite, a dazzling gemstone that offers ...