Black Opal Pendant - Shape: Flat Stone Description of Black Opal Flat Stone Pendant There are a large number of varieties of opals. Black ones can be slightly translucent, especially when exposed to strong light. They differ in their crystalline structure, including iridescent reflections. The black opal - flat stone pendant offered by France Minerals is of great finesse. Its vibrant hues seem to pierce its dark base. This chic and virtuous jewel will magnify your outfits, whether they are elegant or more casual. Having its origins in the Sanskrit word “upala” meaning “precious stone”, opal has survived the ages. According to the aboriginal tribes of Australia, the stone was born after the passage of one of their deities. Descended on a rainbow to deliver a message of peace to all humanity, this divine being would have marked the ground with his multicolored footprints.