No Reserve : Ethiopian Rough Crystal Opal 100% Non-Hydrophane Specimen- 9 g - (1)

Ethiopian opal is renowned globally for its brilliant play of colors, known as opalescence or chatoyancy. Unlike many other opals, Ethiopian varieties often feature bright flashes of multiple colors, making them highly sought after by collectors and jewelry designers. This particular specimen is a rough crystal opal, meaning it is in its natural, unpolished form, showing the raw beauty and matrix textures characteristic of freshly mined stones. Notably, this opal is non-hydrophane, indicating that it does not absorb water and thus tends to be more stable in humid conditions compared to hydrophane opals that become translucent when wet. The weight of this specimen is 9 grams, a modest size reflecting typical rough pieces that can be further cut or shaped. Ethiopian opals are generally found in volcanic rock formations and have only become widely recognized since the late 20th century. Their vibrant color play results from microscopic silica spheres arranged in orderly stacks that diffract light, creating the dynamic visual appearance. Collectors appreciate rough opals for the natural insight they offer into this gemstone's formation and potential for crafting exquisite gemstones.