Size: 28 x 28 mm - 2.5 mm thick. I got these as a collection of sawn slabs and preforms that were dug over 20 years ago. The previous owner, a very good cutter and jeweler, had given them an epoxy coating. I shaped and sanded and polished them, and in most cases all the resin was removed by doing that. So, these do not have a resin coating, but may have a little left on the bottoms.My pictures are taken in direct sunlight - no photoshop. All stones are cut & polished by me, unless noted. Virgin valley nevada opal is almost all wood that has been replaced by opal. Most virgin valley opals contain a high percentage of water in their structure, . And they often crack or craze when dried; these types are best stored and.
When the opal is dispersed in the wood, they can often be dried and polished. Virgin valley opal is quite rare in dry, stable form. Fabulous wood opal - superb colors.These stones have been stabilized to strengthen them. The stabilizing resin strengthens the wood, but does not enter of affect the opal. In spite of being stabilized, they often have internal fractures, making them somewhat fragile. Directional stone - colors flash with stone held at certain angles. Contra-luz colors - needs light from the side, or from behind to show color play.
Hydrophane - stone will absorb water, usually going clear when wet. Natural - 100% mined, untreated, un-assembled. I want you to love my opals.
This item is made of gemstone.