Again not a true ‘Opal’. A beautiful light greenish serpentine. Opal stone is a very hard stone finely textured with an almost translucent surface sometimes specked with red, orange and bluish dots and patches. Opal stone has many variations from milky light coloured greens to darker almost black, but all with a smooth texture. It is also mined at Chiweshe, two hours north of Harare. This stone is one of the favourites of sculptors, as it’s not as hard as springstone and other serpentines, but still polishes to a high finish. Opal stone also, at times, has brown throughout the green.