Pinfire Opal, The Sparkling Birthstone for October 30th
Birthstone for October 30th: Pinfire Opal Description of Pinfire Opal Pinfire Opal is a stunning and relatively rare variety of opal, known for its remarkable play-of-color. Unlike the traditional opals that display larger flashes of color, Pinfire Opal features tiny, pinprick-like dots of brilliant color that seem to sparkle and shift as the stone is moved. These colorful “pinfires” are the result of microscopic silica spheres that reflect light in different ways, creating a mesmerizing effect....