Opal gems are mainly sourced from various locations globally, with awesome deposits determined in Australia, especially in areas like Queensland, New South Wales, and South Australia. Australian opals, such as the well-known black opals from Lightning Ridge, are famed for his or her vibrant play-of-shade and constitute a massive portion of the worldwide opal marketplace. different great sources encompass Ethiopia, in which precious opals with vivid colors have been observed in areas like Wollo and Mezezo; Mexico, recognised for its fire opals; and Brazil, generating a selection of opals, including the popular Brazilian opal. moreover, opals may be found in components of the us, inclusive of Nevada and Oregon, as well as in nations like Peru and Honduras. The particular geological conditions in these areas contribute to the formation of opals with numerous and captivating coloration styles.