These wildly beautiful spheres are created in Mexico using gorgeous Mexican Opals that are laid into a matrix and formed into a sphere. Each piece is absolutely chock full of beautiful opal specimens! The matrix is man made, so the opals aren't found naturally like this, but the original rocks the opals are found in are similar. The spheres aren't totally smooth, but still quite spherical and look awesome displayed on a stand. The opals themselves are absolutely brilliant, a full rainbow of colors and I had them make these specially for me with as wide of a variety of opal colors in each as possible. The end results are spectacular, especially when you move and spin these around in your hand and see the myriad of colors flashing thru those stunning opals. Once again I would loooove to keep every one of these, like candy in a nice bowl, but I've gotta share them with you all, knowing that you'll love them as much as I do. Such natural beauty like this just blows my mind! Get one of these for the sphere collection, you'll love it!! If you check out my Instagram page I've got a video there which shows how the opals flash so brightly.