What is the screw jade?
The jade jade is the result of the exchange of minerals during the silicidation process. The jade jade is completely silicified, and some of the snails clearly show agate patterns; some snails are filled with crystals, which are shiny and bright in daylight; some snails are Appeared as opal (called opal in English), the snails have white pebbles, and some have colorful colors (red, yellow, blue, green, purple, black). Compared with other well-known jade species, it is unique. The whole piece of screwed jade is made up of numerous intact Paleozoic marine pearl snail fossils. Each snail has different shapes, vivid colors, waxy luster, and the snail meat is freshly visible and crystal clear. It seems that every snail is alive and well.
The hardness of the screwed jade is 6.5-7.5, and the density is 2.6 to 3.5. The snails are complicated and rare, and are rarely found in the shallow seas of Sanya, Hainan. Therefore, it has precious archaeological, scientific research and collection value, and is also a rare ornamental collection.
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