And why is it so expensive? Black opal is one of the most enchanting stones in the world, sought after for its seemingly infinite display of colors. Compared to common opal, which is usually one ...

The individual silica nanoparticles (glass beads, basically) are clear, but when packed together in certain configurations can give rise to flashes of color. This is due to Bragg diffraction off the ...

The Black Opal Drink isn’t just a cocktail; it’s an experience. With its vibrant color, smooth taste, and refreshing finish, ...