One intriguing fact about Black Opal is that it's one of the rarest and most valuable types of opal. Unlike common opals that display a milky white or translucent appearance, Black Opal showcases a dark body tone, often ranging from dark gray to jet black, which provides a striking contrast to its vibrant play-of-color. This play-of-color refers to the dazzling array of spectral colors that flash and dance across the surface of the gemstone when it's viewed from different angles. Due to its rarity and intense color display, Black Opal is highly sought after by collectors and enthusiasts, making it one of the most prized gemstones in the world.
